File : einfo.ads


   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                                E I N F O                                 --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2016, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 3,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
  17 --                                                                          --
  18 --                                                                          --
  19 --                                                                          --
  20 --                                                                          --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 -- GNAT was originally developed  by the GNAT team at  New York University. --
  28 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  29 --                                                                          --
  30 ------------------------------------------------------------------------------
  31 
  32 with Snames; use Snames;
  33 with Types;  use Types;
  34 with Uintp;  use Uintp;
  35 with Urealp; use Urealp;
  36 
  37 package Einfo is
  38 
  39 --  This package defines the annotations to the abstract syntax tree that
  40 --  are needed to support semantic processing of an Ada compilation.
  41 
  42 --  Note that after editing this spec and the corresponding body it is
  43 --  required to run ceinfo to check the consistentcy of spec and body.
  44 --  See ceinfo.adb for more information about the checks made.
  45 
  46 --  These annotations are for the most part attributes of declared entities,
  47 --  and they correspond to conventional symbol table information. Other
  48 --  attributes include sets of meanings for overloaded names, possible
  49 --  types for overloaded expressions, flags to indicate deferred constants,
  50 --  incomplete types, etc. These attributes are stored in available fields in
  51 --  tree nodes (i.e. fields not used by the parser, as defined by the Sinfo
  52 --  package specification), and accessed by means of a set of subprograms
  53 --  which define an abstract interface.
  54 
  55 --  There are two kinds of semantic information
  56 
  57 --    First, the tree nodes with the following Nkind values:
  58 
  59 --      N_Defining_Identifier
  60 --      N_Defining_Character_Literal
  61 --      N_Defining_Operator_Symbol
  62 
  63 --    are called Entities, and constitute the information that would often
  64 --    be stored separately in a symbol table. These nodes are all extended
  65 --    to provide extra space, and contain fields which depend on the entity
  66 --    kind, as defined by the contents of the Ekind field. The use of the
  67 --    Ekind field, and the associated fields in the entity, are defined
  68 --    in this package, as are the access functions to these fields.
  69 
  70 --    Second, in some cases semantic information is stored directly in other
  71 --    kinds of nodes, e.g. the Etype field, used to indicate the type of an
  72 --    expression. The access functions to these fields are defined in the
  73 --    Sinfo package, but their full documentation is to be found in
  74 --    the Einfo package specification.
  75 
  76 --  Declaration processing places information in the nodes of their defining
  77 --  identifiers. Name resolution places in all other occurrences of an
  78 --  identifier a pointer to the corresponding defining occurrence.
  79 
  80 --------------------------------
  81 -- The XEINFO Utility Program --
  82 --------------------------------
  83 
  84 --  XEINFO is a utility program which automatically produces a C header file,
  85 --  einfo.h from the spec and body of package Einfo. It reads the input files
  86 --  einfo.ads and einfo.adb and produces the output file einfo.h. XEINFO is run
  87 --  automatically by the build scripts when you do a full bootstrap.
  88 
  89 --  In order for this utility program to operate correctly, the form of the
  90 --  einfo.ads and einfo.adb files must meet certain requirements and be laid
  91 --  out in a specific manner.
  92 
  93 --  The general form of einfo.ads is as follows:
  94 
  95 --     type declaration for type Entity_Kind
  96 --     subtype declarations declaring subranges of Entity_Kind
  97 --     subtype declarations declaring synonyms for some standard types
  98 --     function specs for attributes
  99 --     procedure specs
 100 --     pragma Inline declarations
 101 
 102 --  This order must be observed. There are no restrictions on the procedures,
 103 --  since the C header file only includes functions (The back end is not
 104 --  allowed to modify the generated tree). However, functions are required to
 105 --  have headers that fit on a single line.
 106 
 107 --  XEINFO reads and processes the function specs and the pragma Inlines. For
 108 --  functions that are declared as inlined, XEINFO reads the corresponding body
 109 --  from einfo.adb, and processes it into C code. This results in some strict
 110 --  restrictions on which functions can be inlined:
 111 
 112 --     The function spec must be on a single line
 113 
 114 --     There can only be a single statement, contained on a single line,
 115 --     not counting any pragma Assert statements.
 116 
 117 --     This single statement must either be a function call with simple,
 118 --     single token arguments, or it must be a membership test of the form
 119 --     a in b, where a and b are single tokens.
 120 
 121 --  For functions that are not inlined, there is no restriction on the body,
 122 --  and XEINFO generates a direct reference in the C header file which allows
 123 --  the C code in the backend to directly call the corresponding Ada body.
 124 
 125 ----------------------------------
 126 -- Handling of Type'Size Values --
 127 ----------------------------------
 128 
 129 --  The Ada 95 RM contains some rather peculiar (to us) rules on the value
 130 --  of type'Size (see RM 13.3(55)). We have found that attempting to use
 131 --  these RM Size values generally, and in particular for determining the
 132 --  default size of objects, creates chaos, and major incompatibilities in
 133 --  existing code.
 134 
 135 --  We proceed as follows, for discrete and fixed-point subtypes, we have
 136 --  two separate sizes for each subtype:
 137 
 138 --    The Object_Size, which is used for determining the default size of
 139 --    objects and components. This size value can be referred to using the
 140 --    Object_Size attribute. The phrase "is used" here means that it is
 141 --    the basis of the determination of the size. The backend is free to
 142 --    pad this up if necessary for efficiency, e.g. an 8-bit stand-alone
 143 --    character might be stored in 32 bits on a machine with no efficient
 144 --    byte access instructions such as the Alpha.
 145 
 146 --    The default rules for the value of Object_Size for fixed-point and
 147 --    discrete types are as follows:
 148 
 149 --       The Object_Size for base subtypes reflect the natural hardware
 150 --       size in bits (see Ttypes and Cstand for integer types). For
 151 --       enumeration and fixed-point base subtypes have 8, 16, 32, or 64
 152 --       bits for this size, depending on the range of values to be stored.
 153 
 154 --       The Object_Size of a subtype is the same as the Object_Size of
 155 --       the subtype from which it is obtained.
 156 
 157 --       The Object_Size of a derived base type is copied from the parent
 158 --       base type, and the Object_Size of a derived first subtype is copied
 159 --       from the parent first subtype.
 160 
 161 --    The Value_Size which is the number of bits required to store a value
 162 --    of the type. This size can be referred to using the Value_Size
 163 --    attribute. This value is used to determine how tightly to pack
 164 --    records or arrays with components of this type, and also affects
 165 --    the semantics of unchecked conversion (unchecked conversions where
 166 --    the Value_Size values differ generate a warning, and are potentially
 167 --    target dependent).
 168 
 169 --    The default rules for the value of Value_Size are as follows:
 170 
 171 --       The Value_Size for a base subtype is the minimum number of bits
 172 --       required to store all values of the type (including the sign bit
 173 --       only if negative values are possible).
 174 
 175 --       If a subtype statically matches the first subtype, then it has
 176 --       by default the same Value_Size as the first subtype. This is a
 177 --       consequence of RM 13.1(14) ("if two subtypes statically match,
 178 --       then their subtype-specific aspects are the same".)
 179 
 180 --       All other subtypes have a Value_Size corresponding to the minimum
 181 --       number of bits required to store all values of the subtype. For
 182 --       dynamic bounds, it is assumed that the value can range down or up
 183 --       to the corresponding bound of the ancestor.
 184 
 185 --    The RM defined attribute Size corresponds to the Value_Size attribute.
 186 
 187 --    The Size attribute may be defined for a first-named subtype. This sets
 188 --    the Value_Size of the first-named subtype to the given value, and the
 189 --    Object_Size of this first-named subtype to the given value padded up
 190 --    to an appropriate boundary. It is a consequence of the default rules
 191 --    above that this Object_Size will apply to all further subtypes. On the
 192 --    other hand, Value_Size is affected only for the first subtype, any
 193 --    dynamic subtypes obtained from it directly, and any statically matching
 194 --    subtypes. The Value_Size of any other static subtypes is not affected.
 195 
 196 --    Value_Size and Object_Size may be explicitly set for any subtype using
 197 --    an attribute definition clause. Note that the use of these attributes
 198 --    can cause the RM 13.1(14) rule to be violated. If two access types
 199 --    reference aliased objects whose subtypes have differing Object_Size
 200 --    values as a result of explicit attribute definition clauses, then it
 201 --    is erroneous to convert from one access subtype to the other.
 202 
 203 --    At the implementation level, Esize stores the Object_Size and the
 204 --    RM_Size field stores the Value_Size (and hence the value of the
 205 --    Size attribute, which, as noted above, is equivalent to Value_Size).
 206 
 207 --  To get a feel for the difference, consider the following examples (note
 208 --  that in each case the base is short_short_integer with a size of 8):
 209 
 210 --                                            Object_Size     Value_Size
 211 
 212 --     type x1 is range 0..5;                      8               3
 213 
 214 --     type x2 is range 0..5;
 215 --     for x2'size use 12;                        16              12
 216 
 217 --     subtype x3 is x2 range 0 .. 3;             16               2
 218 
 219 --     subtype x4 is x2'base range 0 .. 10;        8               4
 220 
 221 --     dynamic : x2'Base range -64 .. +63;
 222 
 223 --     subtype x5 is x2 range 0 .. dynamic;       16               3*
 224 
 225 --     subtype x6 is x2'base range 0 .. dynamic;   8               7*
 226 
 227 --  Note: the entries marked * are not actually specified by the Ada 95 RM,
 228 --  but it seems in the spirit of the RM rules to allocate the minimum number
 229 --  of bits known to be large enough to hold the given range of values.
 230 
 231 --  So far, so good, but GNAT has to obey the RM rules, so the question is
 232 --  under what conditions must the RM Size be used. The following is a list
 233 --  of the occasions on which the RM Size must be used:
 234 
 235 --    Component size for packed arrays or records
 236 --    Value of the attribute Size for a type
 237 --    Warning about sizes not matching for unchecked conversion
 238 
 239 --  The RM_Size field keeps track of the RM Size as needed in these
 240 --  three situations.
 241 
 242 --  For elementary types other than discrete and fixed-point types, the
 243 --  Object_Size and Value_Size are the same (and equivalent to the RM
 244 --  attribute Size). Only Size may be specified for such types.
 245 
 246 --  For composite types, Object_Size and Value_Size are computed from their
 247 --  respective value for the type of each element as well as the layout.
 248 
 249 --  All size attributes are stored as Uint values. Negative values are used to
 250 --  reference GCC expressions for the case of non-static sizes, as explained
 251 --  in Repinfo.
 252 
 253 --------------------------------------
 254 -- Delayed Freezing and Elaboration --
 255 --------------------------------------
 256 
 257 --  The flag Has_Delayed_Freeze indicates that an entity carries an explicit
 258 --  freeze node, which appears later in the expanded tree.
 259 
 260 --  a) The flag is used by the front-end to trigger expansion actions which
 261 --  include the generation of that freeze node. Typically this happens at the
 262 --  end of the current compilation unit, or before the first subprogram body is
 263 --  encountered in the current unit. See files freeze and exp_ch13 for details
 264 --  on the actions triggered by a freeze node, which include the construction
 265 --  of initialization procedures and dispatch tables.
 266 
 267 --  b) The presence of a freeze node on an entity is used by the backend to
 268 --  defer elaboration of the entity until its freeze node is seen. In the
 269 --  absence of an explicit freeze node, an entity is frozen (and elaborated)
 270 --  at the point of declaration.
 271 
 272 --  For object declarations, the flag is set when an address clause for the
 273 --  object is encountered. Legality checks on the address expression only take
 274 --  place at the freeze point of the object.
 275 
 276 --  Most types have an explicit freeze node, because they cannot be elaborated
 277 --  until all representation and operational items that apply to them have been
 278 --  analyzed. Private types and incomplete types have the flag set as well, as
 279 --  do task and protected types.
 280 
 281 --  Implicit base types created for type derivations, as well as classwide
 282 --  types created for all tagged types, have the flag set.
 283 
 284 --  If a subprogram has an access parameter whose designated type is incomplete
 285 --  the subprogram has the flag set.
 286 
 287 -----------------------
 288 -- Entity Attributes --
 289 -----------------------
 290 
 291 --  This section contains a complete list of the attributes that are defined
 292 --  on entities. Some attributes apply to all entities, others only to certain
 293 --  kinds of entities. In the latter case the attribute should only be set or
 294 --  accessed if the Ekind field indicates an appropriate entity.
 295 
 296 --  There are two kinds of attributes that apply to entities, stored and
 297 --  synthesized. Stored attributes correspond to a field or flag in the entity
 298 --  itself. Such attributes are identified in the table below by giving the
 299 --  field or flag in the attribute that is used to hold the attribute value.
 300 --  Synthesized attributes are not stored directly, but are rather computed as
 301 --  needed from other attributes, or from information in the tree. These are
 302 --  marked "synthesized" in the table below. The stored attributes have both
 303 --  access functions and set procedures to set the corresponding values, while
 304 --  synthesized attributes have only access functions.
 305 
 306 --  Note: in the case of Node, Uint, or Elist fields, there are cases where the
 307 --  same physical field is used for different purposes in different entities,
 308 --  so these access functions should only be referenced for the class of
 309 --  entities in which they are defined as being present. Flags are not
 310 --  overlapped in this way, but nevertheless as a matter of style and
 311 --  abstraction (which may or may not be checked by assertions in the
 312 --  body), this restriction should be observed for flag fields as well.
 313 
 314 --  Note: certain of the attributes on types apply only to base types, and
 315 --  are so noted by the notation [base type only]. These are cases where the
 316 --  attribute of any subtype is the same as the attribute of the base type.
 317 --  The attribute can be referenced on a subtype (and automatically retrieves
 318 --  the value from the base type). However, it is an error to try to set the
 319 --  attribute on other than the base type, and if assertions are enabled,
 320 --  an attempt to set the attribute on a subtype will raise an assert error.
 321 
 322 --  Other attributes are noted as applying to the [implementation base type
 323 --  only].  These are representation attributes which must always apply to a
 324 --  full non-private type, and where the attributes are always on the full
 325 --  type. The attribute can be referenced on a subtype (and automatically
 326 --  retries the value from the implementation base type). However, it is an
 327 --  error to try to set the attribute on other than the implementation base
 328 --  type, and if assertions are enabled, an attempt to set the attribute on a
 329 --  subtype will raise an assert error.
 330 
 331 --    Abstract_States (Elist25)
 332 --       Defined for E_Package entities. Contains a list of all the abstract
 333 --       states declared by the related package.
 334 
 335 --    Accept_Address (Elist21)
 336 --       Defined in entries. If an accept has a statement sequence, then an
 337 --       address variable is created, which is used to hold the address of the
 338 --       parameters, as passed by the runtime. Accept_Address holds an element
 339 --       list which represents a stack of entities for these address variables.
 340 --       The current entry is the top of the stack, which is the last element
 341 --       on the list. A stack is required to handle the case of nested select
 342 --       statements referencing the same entry.
 343 
 344 --    Access_Disp_Table (Elist16) [implementation base type only]
 345 --       Defined in E_Record_Type and E_Record_Subtype entities. Set in tagged
 346 --       types to point to their dispatch tables. The first two entities are
 347 --       associated with the primary dispatch table: 1) primary dispatch table
 348 --       with user-defined primitives 2) primary dispatch table with predefined
 349 --       primitives. For each interface type covered by the tagged type we also
 350 --       have: 3) secondary dispatch table with thunks of primitives covering
 351 --       user-defined interface primitives, 4) secondary dispatch table with
 352 --       thunks of predefined primitives, 5) secondary dispatch table with user
 353 --       defined primitives, and 6) secondary dispatch table with predefined
 354 --       primitives. The last entity of this list is an access type declaration
 355 --       used to expand dispatching calls through the primary dispatch table.
 356 --       For an untagged record, contains No_Elist.
 357 
 358 --    Activation_Record_Component (Node31)
 359 --       Defined in E_Variable, E_Constant, E_Loop_Parameter, E_In_Parameter,
 360 --       E_Out_Parameter, E_In_Out_Parameter nodes. Used only if we are in
 361 --       Opt.Unnest_Subprogram_Mode, in which case for the case of an uplevel
 362 --       referenced entity, this field contains the entity for the component
 363 --       in the generated ARECnT activation record (Exp_Unst for details).
 364 
 365 --    Actual_Subtype (Node17)
 366 --       Defined in variables, constants, and formal parameters. This is the
 367 --       subtype imposed by the value of the object, as opposed to its nominal
 368 --       subtype, which is imposed by the declaration. The actual subtype
 369 --       differs from the nominal one when the latter is indefinite (as in the
 370 --       case of an unconstrained formal parameter, or a variable declared
 371 --       with an unconstrained type and an initial value). The nominal subtype
 372 --       is the Etype entry for the entity. The Actual_Subtype field is set
 373 --       only if the actual subtype differs from the nominal subtype. If the
 374 --       actual and nominal subtypes are the same, then the Actual_Subtype
 375 --       field is Empty, and Etype indicates both types.
 376 --
 377 --       For objects, the Actual_Subtype is set only if this is a discriminated
 378 --       type. For arrays, the bounds of the expression are obtained and the
 379 --       Etype of the object is directly the constrained subtype. This is
 380 --       rather irregular, and the semantic checks that depend on the nominal
 381 --       subtype being unconstrained use flag Is_Constr_Subt_For_U_Nominal(qv).
 382 
 383 --    Address_Clause (synthesized)
 384 --       Applies to entries, objects and subprograms. Set if an address clause
 385 --       is present which references the object or subprogram and points to
 386 --       the N_Attribute_Definition_Clause node. Empty if no Address clause.
 387 --       The expression in the address clause is always a constant that is
 388 --       defined before the entity to which the address clause applies.
 389 --       Note: The backend references this field in E_Task_Type entities???
 390 
 391 --    Address_Taken (Flag104)
 392 --       Defined in all entities. Set if the Address or Unrestricted_Access
 393 --       attribute is applied directly to the entity, i.e. the entity is the
 394 --       entity of the prefix of the attribute reference. Also set if the
 395 --       entity is the second argument of an Asm_Input or Asm_Output attribute,
 396 --       as the construct may entail taking its address. Used by the backend to
 397 --       make sure that the address can be meaningfully taken, and also in the
 398 --       case of subprograms to control output of certain warnings.
 399 
 400 --    Aft_Value (synthesized)
 401 --       Applies to fixed and decimal types. Computes a universal integer that
 402 --       holds value of the Aft attribute for the type.
 403 
 404 --    Alias (Node18)
 405 --       Defined in overloadable entities (literals, subprograms, entries) and
 406 --       subprograms that cover a primitive operation of an abstract interface
 407 --       (that is, subprograms with the Interface_Alias attribute). In case of
 408 --       overloaded entities it points to the parent subprogram of a derived
 409 --       subprogram. In case of abstract interface subprograms it points to the
 410 --       subprogram that covers the abstract interface primitive. Also used for
 411 --       a subprogram renaming, where it points to the renamed subprogram. For
 412 --       an inherited operation (of a type extension) that is overridden in a
 413 --       private part, the Alias is the overriding operation. In this fashion a
 414 --       call from outside the package ends up executing the new body even if
 415 --       non-dispatching, and a call from inside calls the overriding operation
 416 --       because it hides the implicit one. Alias is always empty for entries.
 417 
 418 --    Alignment (Uint14)
 419 --       Defined in entities for types and also in constants, variables
 420 --       (including exceptions where it refers to the static data allocated for
 421 --       an exception), loop parameters, and formal parameters. This indicates
 422 --       the desired alignment for a type, or the actual alignment for an
 423 --       object. A value of zero (Uint_0) indicates that the alignment has not
 424 --       been set yet. The alignment can be set by an explicit alignment
 425 --       clause, or set by the front-end in package Layout, or set by the
 426 --       back-end as part of the back-end back-annotation process. The
 427 --       alignment field is also defined in E_Exception entities, but there it
 428 --       is used only by the back-end for back annotation.
 429 
 430 --    Alignment_Clause (synthesized)
 431 --       Applies to all entities for types and objects. If an alignment
 432 --       attribute definition clause is present for the entity, then this
 433 --       function returns the N_Attribute_Definition clause that specifies the
 434 --       alignment. If no alignment clause applies to the type, then the call
 435 --       to this function returns Empty. Note that the call can return a
 436 --       non-Empty value even if Has_Alignment_Clause is not set (happens with
 437 --       subtype and derived type declarations). Note also that a record
 438 --       definition clause with an (obsolescent) mod clause is converted
 439 --       into an attribute definition clause for this purpose.
 440 
 441 --    Anonymous_Master (Node35)
 442 --       Defined in all types. Contains the entity of an anonymous finalization
 443 --       master which services all anonymous access types associated with the
 444 --       same designated type within the current semantic unit. The attribute
 445 --       is set reactively during the expansion of allocators.
 446 
 447 --    Anonymous_Object (Node30)
 448 --       Present in protected and task type entities. Contains the entity of
 449 --       the anonymous object created for a single protected or task type.
 450 
 451 --    Associated_Entity (Node37)
 452 --       Defined in all entities. This field is similar to Associated_Node, but
 453 --       applied to entities. The attribute links an entity from the generic
 454 --       template with its corresponding entity in the analyzed generic copy.
 455 --       The global references mechanism relies on the Associated_Entity to
 456 --       infer the context.
 457 
 458 --    Associated_Formal_Package (Node12)
 459 --       Defined in packages that are the actuals of formal_packages. Points
 460 --       to the entity in the declaration for the formal package.
 461 
 462 --    Associated_Node_For_Itype (Node8)
 463 --       Defined in all type and subtype entities. Set non-Empty only for
 464 --       Itypes. Set to point to the associated node for the Itype, i.e.
 465 --       the node whose elaboration generated the Itype. This is used for
 466 --       copying trees, to determine whether or not to copy an Itype, and
 467 --       also for accessibility checks on anonymous access types. This
 468 --       node is typically an object declaration, component declaration,
 469 --       type or subtype declaration.
 470 
 471 --       For an access discriminant in a type declaration, the associated_
 472 --       node_for_itype is the corresponding discriminant specification.
 473 
 474 --       For an access parameter it is the enclosing subprogram declaration.
 475 
 476 --       For an access_to_protected_subprogram parameter it is the declaration
 477 --       of the corresponding formal parameter.
 478 --
 479 --       Itypes have no explicit declaration, and therefore are not attached to
 480 --       the tree: their Parent field is always empty. The Associated_Node_For_
 481 --       Itype is the only way to determine the construct that leads to the
 482 --       creation of a given itype entity.
 483 
 484 --    Associated_Storage_Pool (Node22) [root type only]
 485 --       Defined in simple and general access type entities. References the
 486 --       storage pool to be used for the corresponding collection. A value of
 487 --       Empty means that the default pool is to be used. This is defined
 488 --       only in the root type, since derived types must have the same pool
 489 --       as the parent type.
 490 
 491 --    Barrier_Function (Node12)
 492 --       Defined in protected entries and entry families. This is the
 493 --       subprogram declaration for the body of the function that returns
 494 --       the value of the entry barrier.
 495 
 496 --    Base_Type (synthesized)
 497 --       Applies to all type and subtype entities. Returns the base type of a
 498 --       type or subtype. The base type of a type is the type itself. The base
 499 --       type of a subtype is the type that it constrains (which is always
 500 --       a type entity, not some other subtype). Note that in the case of a
 501 --       subtype of a private type, it is possible for the base type attribute
 502 --       to return a private type, even if the subtype to which it applies is
 503 --       non-private. See also Implementation_Base_Type. Note: it is allowed to
 504 --       apply Base_Type to other than a type, in which case it simply returns
 505 --       the entity unchanged.
 506 
 507 --    Block_Node (Node11)
 508 --       Defined in block entities. Points to the identifier in the
 509 --       Block_Statement itself. Used when retrieving the block construct
 510 --       for finalization purposes, The block entity has an implicit label
 511 --       declaration in the enclosing declarative part, and has otherwise
 512 --       no direct connection in the tree with the block statement. The
 513 --       link is to the identifier (which is an occurrence of the entity)
 514 --       and not to the block_statement itself, because the statement may
 515 --       be rewritten, e.g. in the process of removing dead code.
 516 
 517 --    Body_Entity (Node19)
 518 --       Defined in package and generic package entities, points to the
 519 --       corresponding package body entity if one is present.
 520 
 521 --    Body_Needed_For_SAL (Flag40)
 522 --       Defined in package and subprogram entities that are compilation
 523 --       units. Indicates that the source for the body must be included
 524 --       when the unit is part of a standalone library.
 525 
 526 --    Body_References (Elist16)
 527 --       Defined in abstract state entities. Contains an element list of
 528 --       references (identifiers) that appear in a package body whose spec
 529 --       defines the related state. If the body refines the said state, all
 530 --       references on this list are illegal due to the visible refinement.
 531 
 532 --    BIP_Initialization_Call (Node29)
 533 --       Defined in constants and variables whose corresponding declaration
 534 --       is wrapped in a transient block and the inital value is provided by
 535 --       a build-in-place function call. Contains the relocated build-in-place
 536 --       call after the expansion has decoupled the call from the object. This
 537 --       attribute is used by the finalization machinery to insert cleanup code
 538 --       for all additional transient variables found in the transient block.
 539 
 540 --    C_Pass_By_Copy (Flag125) [implementation base type only]
 541 --       Defined in record types. Set if a pragma Convention for the record
 542 --       type specifies convention C_Pass_By_Copy. This convention name is
 543 --       treated as identical in all respects to convention C, except that
 544 --       if it is specified for a record type, then the C_Pass_By_Copy flag
 545 --       is set, and if a foreign convention subprogram has a formal of the
 546 --       corresponding type, then the parameter passing mechanism will be
 547 --       set to By_Copy (unless specifically overridden by an Import or
 548 --       Export pragma).
 549 
 550 --    Can_Never_Be_Null (Flag38)
 551 --       This flag is defined in all entities. It is set in an object which can
 552 --       never have a null value. Set for constant access values initialized to
 553 --       a non-null value. This is also set for all access parameters in Ada 83
 554 --       and Ada 95 modes, and for access parameters that explicitly exclude
 555 --       exclude null in Ada 2005 mode.
 556 --
 557 --       This is used to avoid unnecessary resetting of the Is_Known_Non_Null
 558 --       flag for such entities. In Ada 2005 mode, this is also used when
 559 --       determining subtype conformance of subprogram profiles to ensure
 560 --       that two formals have the same null-exclusion status.
 561 --
 562 --       This is also set on some access types, e.g. the Etype of the anonymous
 563 --       access type of a controlling formal.
 564 
 565 --    Can_Use_Internal_Rep (Flag229) [base type only]
 566 --       Defined in Access_Subprogram_Kind nodes. This flag is set by the
 567 --       front end and used by the backend. False means that the backend
 568 --       must represent the type in the same way as Convention-C types (and
 569 --       other foreign-convention types). On many targets, this means that
 570 --       the backend will use dynamically generated trampolines for nested
 571 --       subprograms. True means that the backend can represent the type in
 572 --       some internal way. On the aforementioned targets, this means that the
 573 --       backend will not use dynamically generated trampolines. This flag
 574 --       must be False if Has_Foreign_Convention is True; otherwise, the front
 575 --       end is free to set the policy.
 576 --
 577 --       Setting this False in all cases corresponds to the traditional back
 578 --       end strategy, where all access-to-subprogram types are represented the
 579 --       same way, independent of the Convention. For further details, see also
 580 --       Always_Compatible_Rep in Targparm.
 581 --
 582 --       Efficiency note: On targets that use dynamically generated
 583 --       trampolines, False generally favors efficiency of top-level
 584 --       subprograms, whereas True generally favors efficiency of nested
 585 --       ones. On other targets, this flag has little or no effect on
 586 --       efficiency. The front end should take this into account. In
 587 --       particular, pragma Favor_Top_Level gives a hint that the flag
 588 --       should be False.
 589 --
 590 --       Note: We considered using Convention-C for this purpose, but we need
 591 --       this separate flag, because Convention-C implies that in the case of
 592 --       P'[Unrestricted_]Access, P also have convention C. Sometimes we want
 593 --       to have Can_Use_Internal_Rep False for an access type, but allow P to
 594 --       have convention Ada.
 595 
 596 --    Chars (Name1)
 597 --       Defined in all entities. This field contains an entry into the names
 598 --       table that has the character string of the identifier, character
 599 --       literal or operator symbol. See Namet for further details. Note that
 600 --       throughout the processing of the front end, this name is the simple
 601 --       unqualified name. However, just before the backend is called, a call
 602 --       is made to Qualify_All_Entity_Names. This causes entity names to be
 603 --       qualified using the encoding described in exp_dbug.ads, and from that
 604 --       point (including post backend steps, e.g. cross-reference generation),
 605 --       the entities will contain the encoded qualified names.
 606 
 607 --    Checks_May_Be_Suppressed (Flag31)
 608 --       Defined in all entities. Set if a pragma Suppress or Unsuppress
 609 --       mentions the entity specifically in the second argument. If this
 610 --       flag is set the Global_Entity_Suppress and Local_Entity_Suppress
 611 --       tables must be consulted to determine if there actually is an active
 612 --       Suppress or Unsuppress pragma that applies to the entity.
 613 
 614 --    Class_Wide_Preconds (List38)
 615 --       Defined on subprograms. Holds the list of class-wide precondition
 616 --       functions inherited from ancestors. Each such function is an
 617 --       instantiation of the generic function generated from an explicit
 618 --       aspect specification for a class-wide precondition. A type is an
 619 --       ancestor of itself, and therefore a root type has such an instance
 620 --       on its own list.
 621 
 622 --    Class_Wide_Postconds (List39)
 623 --       Ditto for class-wide postconditions.
 624 
 625 --    Class_Wide_Type (Node9)
 626 --       Defined in all type entities. For a tagged type or subtype, returns
 627 --       the corresponding implicitly declared class-wide type. For a
 628 --       class-wide type, returns itself. Set to Empty for untagged types.
 629 
 630 --    Cloned_Subtype (Node16)
 631 --       Defined in E_Record_Subtype and E_Class_Wide_Subtype entities.
 632 --       Each such entity can either have a Discriminant_Constraint, in
 633 --       which case it represents a distinct type from the base type (and
 634 --       will have a list of components and discrimants in the list headed by
 635 --       First_Entity) or else no such constraint, in which case it will be a
 636 --       copy of the base type.
 637 --
 638 --       o  Each element of the list in First_Entity is copied from the base
 639 --          type; in that case, this field is Empty.
 640 --
 641 --       o  The list in First_Entity is shared with the base type; in that
 642 --          case, this field points to that entity.
 643 --
 644 --       A record or classwide subtype may also be a copy of some other
 645 --       subtype and share the entities in the First_Entity with that subtype.
 646 --       In that case, this field points to that subtype.
 647 --
 648 --       For E_Class_Wide_Subtype, the presence of Equivalent_Type overrides
 649 --       this field. Note that this field ONLY appears in subtype entries, not
 650 --       in type entries, it is not defined, and it is an error to reference
 651 --       Cloned_Subtype in an E_Record_Type or E_Class_Wide_Type entity.
 652 
 653 --    Comes_From_Source
 654 --       This flag appears on all nodes, including entities, and indicates
 655 --       that the node was created by the scanner or parser from the original
 656 --       source. Thus for entities, it indicates that the entity is defined
 657 --       in the original source program.
 658 
 659 --    Component_Alignment (special field) [base type only]
 660 --       Defined in array and record entities. Contains a value of type
 661 --       Component_Alignment_Kind indicating the alignment of components.
 662 --       Set to Calign_Default normally, but can be overridden by use of
 663 --       the Component_Alignment pragma. Note: this field is currently
 664 --       stored in a non-standard way, see body for details.
 665 
 666 --    Component_Bit_Offset (Uint11)
 667 --       Defined in record components (E_Component, E_Discriminant) if a
 668 --       component clause applies to the component. First bit position of
 669 --       given component, computed from the first bit and position values
 670 --       given in the component clause. A value of No_Uint means that the
 671 --       value is not yet known. The value can be set by the appearance of
 672 --       an explicit component clause in a record representation clause,
 673 --       or it can be set by the front-end in package Layout, or it can be
 674 --       set by the backend. By the time backend processing is completed,
 675 --       this field is always set. A negative value is used to represent
 676 --       a value which is not known at compile time, and must be computed
 677 --       at run-time (this happens if fields of a record have variable
 678 --       lengths). See package Layout for details of these values.
 679 --
 680 --       Note: Component_Bit_Offset is redundant with respect to the fields
 681 --       Normalized_First_Bit and Normalized_Position, and could in principle
 682 --       be eliminated, but it is convenient in several situations, including
 683 --       use in the backend, to have this redundant field.
 684 
 685 --    Component_Clause (Node13)
 686 --       Defined in record components and discriminants. If a record
 687 --       representation clause is present for the corresponding record type a
 688 --       that specifies a position for the component, then the Component_Clause
 689 --       field of the E_Component entity points to the N_Component_Clause node.
 690 --       Set to Empty if no record representation clause was present, or if
 691 --       there was no specification for this component.
 692 
 693 --    Component_Size (Uint22) [implementation base type only]
 694 --       Defined in array types. It contains the component size value for
 695 --       the array. A value of No_Uint means that the value is not yet set.
 696 --       The value can be set by the use of a component size clause, or
 697 --       by the front end in package Layout, or by the backend. A negative
 698 --       value is used to represent a value which is not known at compile
 699 --       time, and must be computed at run-time (this happens if the type
 700 --       of the component has a variable length size). See package Layout
 701 --       for details of these values.
 702 
 703 --    Component_Type (Node20) [implementation base type only]
 704 --       Defined in array types and string types. References component type.
 705 
 706 --    Contains_Ignored_Ghost_Code (Flag279)
 707 --       Defined in blocks, packages and their bodies, subprograms and their
 708 --       bodies. Set if the entity contains any ignored Ghost code in the form
 709 --       of declaration, procedure call, assignment statement or pragma.
 710 
 711 --    Contract (Node34)
 712 --       Defined in constant, entry, entry family, operator, [generic] package,
 713 --       package body, protected type, [generic] subprogram, subprogram body,
 714 --       variable and task type entities. Points to the contract of the entity,
 715 --       holding various assertion items and data classifiers.
 716 
 717 --    Contract_Wrapper (Node25)
 718 --       Defined in entry and entry family entities. Set only when the entry
 719 --       [family] has contract cases, preconditions, and/or postconditions.
 720 --       Contains the entity of a wrapper procedure which encapsulates the
 721 --       original entry and implements precondition/postcondition semantics.
 722 
 723 --    Corresponding_Concurrent_Type (Node18)
 724 --       Defined in record types that are constructed by the expander to
 725 --       represent task and protected types (Is_Concurrent_Record_Type flag
 726 --       set). Points to the entity for the corresponding task type or the
 727 --       protected type.
 728 
 729 --    Corresponding_Discriminant (Node19)
 730 --       Defined in discriminants of a derived type, when the discriminant is
 731 --       used to constrain a discriminant of the parent type. Points to the
 732 --       corresponding discriminant in the parent type. Otherwise it is Empty.
 733 
 734 --    Corresponding_Equality (Node30)
 735 --       Defined in function entities for implicit inequality operators.
 736 --       Denotes the explicit or derived equality operation that creates
 737 --       the implicit inequality. Note that this field is not present in
 738 --       other function entities, only in implicit inequality routines,
 739 --       where Comes_From_Source is always False.
 740 
 741 --    Corresponding_Function (Node32)
 742 --       Defined on procedures internally built with an extra out parameter
 743 --       to return a constrained array type, when Modify_Tree_For_C is set.
 744 --       Denotes the function that returns the constrained array type for
 745 --       which this procedure was built.
 746 
 747 --    Corresponding_Procedure (Node32)
 748 --       Defined on functions that return a constrained array type, when
 749 --       Modify_Tree_For_C is set. Denotes the internally built procedure
 750 --       with an extra out parameter created for it.
 751 
 752 --    Corresponding_Protected_Entry (Node18)
 753 --       Defined in subprogram bodies. Set for subprogram bodies that implement
 754 --       a protected type entry to point to the entity for the entry.
 755 
 756 --    Corresponding_Record_Type (Node18)
 757 --       Defined in protected and task types and subtypes. References the
 758 --       entity for the corresponding record type constructed by the expander
 759 --       (see Exp_Ch9). This type is used to represent values of the task type.
 760 
 761 --    Corresponding_Remote_Type (Node22)
 762 --       Defined in record types that describe the fat pointer structure for
 763 --       Remote_Access_To_Subprogram types. References the original access
 764 --       to subprogram type.
 765 
 766 --    CR_Discriminant (Node23)
 767 --       Defined in discriminants of concurrent types. Denotes the homologous
 768 --       discriminant of the corresponding record type. The CR_Discriminant is
 769 --       created at the same time as the discriminal, and used to replace
 770 --       occurrences of the discriminant within the type declaration.
 771 
 772 --    Current_Use_Clause (Node27)
 773 --       Defined in packages and in types. For packages, denotes the use
 774 --       package clause currently in scope that makes the package use_visible.
 775 --       For types, it denotes the use_type clause that makes the operators of
 776 --       the type visible. Used for more precise warning messages on redundant
 777 --       use clauses.
 778 
 779 --    Current_Value (Node9)
 780 --       Defined in all object entities. Set in E_Variable, E_Constant, formal
 781 --       parameters and E_Loop_Parameter entities if we have trackable current
 782 --       values. Set non-Empty if the (constant) current value of the variable
 783 --       is known, This value is valid only for references from the same
 784 --       sequential scope as the entity. The sequential scope of an entity
 785 --       includes the immediate scope and any contained scopes that are package
 786 --       specs, package bodies, blocks (at any nesting level) or statement
 787 --       sequences in IF or loop statements.
 788 --
 789 --       Another related use of this field is to record information about the
 790 --       value obtained from an IF or WHILE statement condition. If the IF or
 791 --       ELSIF or WHILE condition has the form "NOT {,NOT] OBJ RELOP VAL ",
 792 --       or OBJ [AND [THEN]] expr, where OBJ refers to an entity with a
 793 --       Current_Value field, RELOP is one of the six relational operators, and
 794 --       VAL is a compile-time known value then the Current_Value field of OBJ
 795 --       points to the N_If_Statement, N_Elsif_Part, or N_Iteration_Scheme node
 796 --       of the relevant construct, and the Condition field of this can be
 797 --       consulted to give information about the value of OBJ. For more details
 798 --       on this usage, see the procedure Exp_Util.Get_Current_Value_Condition.
 799 
 800 --    Debug_Info_Off (Flag166)
 801 --       Defined in all entities. Set if a pragma Suppress_Debug_Info applies
 802 --       to the entity, or if internal processing in the compiler determines
 803 --       that suppression of debug information is desirable. Note that this
 804 --       flag is only for use by the front end as part of the processing for
 805 --       determining if Needs_Debug_Info should be set. The backend should
 806 --       always test Needs_Debug_Info, it should never test Debug_Info_Off.
 807 
 808 --    Debug_Renaming_Link (Node25)
 809 --       Used to link the variable associated with a debug renaming declaration
 810 --       to the renamed entity. See Exp_Dbug.Debug_Renaming_Declaration for
 811 --       details of the use of this field.
 812 
 813 --    Declaration_Node (synthesized)
 814 --       Applies to all entities. Returns the tree node for the construct that
 815 --       declared the entity. Normally this is just the Parent of the entity.
 816 --       One exception arises with child units, where the parent of the entity
 817 --       is a selected component/defining program unit name. Another exception
 818 --       is that if the entity is an incomplete type that has been completed or
 819 --       a private type, then we obtain the declaration node denoted by the
 820 --       full type, i.e. the full type declaration node. Also note that for
 821 --       subprograms, this returns the {function,procedure}_specification, not
 822 --       the subprogram_declaration.
 823 
 824 --    Default_Aspect_Component_Value (Node19) [base type only]
 825 --       Defined in array types. Holds the static value specified in a
 826 --       Default_Component_Value aspect specification for the array type,
 827 --       or inherited on derivation.
 828 
 829 --    Default_Aspect_Value (Node19) [base type only]
 830 --       Defined in scalar types. Holds the static value specified in a
 831 --       Default_Value aspect specification for the type, or inherited
 832 --       on derivation.
 833 
 834 --    Default_Expr_Function (Node21)
 835 --       Defined in parameters. It holds the entity of the parameterless
 836 --       function that is built to evaluate the default expression if it is
 837 --       more complex than a simple identifier or literal. For the latter
 838 --       simple cases or if there is no default value, this field is Empty.
 839 
 840 --    Default_Expressions_Processed (Flag108)
 841 --       A flag in subprograms (functions, operators, procedures) and in
 842 --       entries and entry families used to indicate that default expressions
 843 --       have been processed and to avoid multiple calls to process the
 844 --       default expressions (see Freeze.Process_Default_Expressions), which
 845 --       would not only waste time, but also generate false error messages.
 846 
 847 --    Default_Init_Cond_Procedure (synthesized)
 848 --       Defined in all types. Set for private [sub]types subject to pragma
 849 --       Default_Initial_Condition, their corresponding full views and derived
 850 --       types with at least one parent subject to the pragma. Contains the
 851 --       entity of the procedure which takes a single argument of the given
 852 --       type and verifies the assumption of the pragma.
 853 --
 854 --       Note: the reason this is marked as a synthesized attribute is that the
 855 --       way this is stored is as an element of the Subprograms_For_Type field.
 856 
 857 --    Default_Value (Node20)
 858 --       Defined in formal parameters. Points to the node representing the
 859 --       expression for the default value for the parameter. Empty if the
 860 --       parameter has no default value (which is always the case for OUT
 861 --       and IN OUT parameters in the absence of errors).
 862 
 863 --    Delay_Cleanups (Flag114)
 864 --       Defined in entities that have finalization lists (subprograms
 865 --       blocks, and tasks). Set if there are pending generic body
 866 --       instantiations for the corresponding entity. If this flag is
 867 --       set, then generation of cleanup actions for the corresponding
 868 --       entity must be delayed, since the insertion of the generic body
 869 --       may affect cleanup generation (see Inline for further details).
 870 
 871 --    Delay_Subprogram_Descriptors (Flag50)
 872 --       Defined in entities for which exception subprogram descriptors
 873 --       are generated (subprograms, package declarations and package
 874 --       bodies). Defined if there are pending generic body instantiations
 875 --       for the corresponding entity. If this flag is set, then generation
 876 --       of the subprogram descriptor for the corresponding enities must
 877 --       be delayed, since the insertion of the generic body may add entries
 878 --       to the list of handlers.
 879 --
 880 --       Note: for subprograms, Delay_Subprogram_Descriptors is set if and
 881 --       only if Delay_Cleanups is set. But Delay_Cleanups can be set for a
 882 --       a block (in which case Delay_Subprogram_Descriptors is set for the
 883 --       containing subprogram). In addition Delay_Subprogram_Descriptors is
 884 --       set for a library level package declaration or body which contains
 885 --       delayed instantiations (in this case the descriptor refers to the
 886 --       enclosing elaboration procedure).
 887 
 888 --    Delta_Value (Ureal18)
 889 --       Defined in fixed and decimal types. Points to a universal real
 890 --       that holds value of delta for the type, as given in the declaration
 891 --       or as inherited by a subtype or derived type.
 892 
 893 --    Dependent_Instances (Elist8)
 894 --       Defined in packages that are instances. Holds list of instances
 895 --       of inner generics. Used to place freeze nodes for those instances
 896 --       after that of the current one, i.e. after the corresponding generic
 897 --       bodies.
 898 
 899 --    Depends_On_Private (Flag14)
 900 --       Defined in all type entities. Set if the type is private or if it
 901 --       depends on a private type.
 902 
 903 --    Derived_Type_Link (Node31)
 904 --       Defined in all type and subtype entries. Set in a base type if
 905 --       a derived type declaration is encountered which derives from
 906 --       this base type or one of its subtypes, and there are already
 907 --       primitive operations declared. In this case, it references the
 908 --       entity for the type declared by the derived type declaration.
 909 --       For example:
 910 --
 911 --          type R is ...
 912 --          subtype RS is R ...
 913 --          ...
 914 --          type G is new RS ...
 915 --
 916 --       In this case, if primitive operations have been declared for R, at
 917 --       the point of declaration of G, then the Derived_Type_Link of R is set
 918 --       to point to the entity for G. This is used to generate warnings for
 919 --       rep clauses that appear later on for R, which might result in an
 920 --       unexpected implicit conversion operation.
 921 --
 922 --       Note: if there is more than one such derived type, the link will point
 923 --       to the last one (this is only used in generating warning messages).
 924 
 925 --    Designated_Type (synthesized)
 926 --       Applies to access types. Returns the designated type. Differs from
 927 --       Directly_Designated_Type in that if the access type refers to an
 928 --       incomplete type, and the full type is available, then this full type
 929 --       is returned instead of the incomplete type.
 930 
 931 --    Digits_Value (Uint17)
 932 --       Defined in floating point types and subtypes and decimal types and
 933 --       subtypes. Contains the Digits value specified in the declaration.
 934 
 935 --    Direct_Primitive_Operations (Elist10)
 936 --       Defined in tagged types and subtypes (including synchronized types),
 937 --       in tagged private types and in tagged incomplete types. Element list
 938 --       of entities for primitive operations of the tagged type. Not defined
 939 --       in untagged types. In order to follow the C++ ABI, entities of
 940 --       primitives that come from source must be stored in this list in the
 941 --       order of their occurrence in the sources. For incomplete types the
 942 --       list is always empty.
 943 --       When expansion is disabled the corresponding record type of a
 944 --       synchronized type is not constructed. In that case, such types
 945 --       carry this attribute directly, for ASIS use.
 946 
 947 --    Directly_Designated_Type (Node20)
 948 --       Defined in access types. This field points to the type that is
 949 --       directly designated by the access type. In the case of an access
 950 --       type to an incomplete type, this field references the incomplete
 951 --       type. Directly_Designated_Type is typically used in implementing the
 952 --       static semantics of the language; in implementing dynamic semantics,
 953 --       we typically want the full view of the designated type. The function
 954 --       Designated_Type obtains this full type in the case of access to an
 955 --       incomplete type.
 956 
 957 --    Disable_Controlled (Flag253)
 958 --      Present in all entities. Set for a controlled type (Is_Controlled flag
 959 --      set) if the aspect Disable_Controlled is active for the type.
 960 
 961 --    Discard_Names (Flag88)
 962 --       Defined in types and exception entities. Set if pragma Discard_Names
 963 --       applies to the entity. It is also set for declarative regions and
 964 --       package specs for which a Discard_Names pragma with zero arguments
 965 --       has been encountered. The purpose of setting this flag is to be able
 966 --       to set the Discard_Names attribute on enumeration types declared
 967 --       after the pragma within the same declarative region. This flag is
 968 --       set to False if a Keep_Names pragma appears for an enumeration type.
 969 
 970 --    Discriminal (Node17)
 971 --       Defined in discriminants (Discriminant formal: GNAT's first
 972 --       coinage). The entity used as a formal parameter that corresponds
 973 --       to a discriminant. See section "Handling of Discriminants" for
 974 --       full details of the use of discriminals.
 975 
 976 --    Discriminal_Link (Node10)
 977 --       Defined in E_In_Parameter or E_Constant entities. For discriminals,
 978 --       points back to corresponding discriminant. For other entities, must
 979 --       remain Empty.
 980 
 981 --    Discriminant_Checking_Func (Node20)
 982 --       Defined in components. Points to the defining identifier of the
 983 --       function built by the expander returns a Boolean indicating whether
 984 --       the given record component exists for the current discriminant
 985 --       values.
 986 
 987 --    Discriminant_Constraint (Elist21)
 988 --       Defined in entities whose Has_Discriminants flag is set (concurrent
 989 --       types, subtypes, record types and subtypes, private types and
 990 --       subtypes, limited private types and subtypes and incomplete types).
 991 --       It is an error to reference the Discriminant_Constraint field if
 992 --       Has_Discriminants is False.
 993 --
 994 --       If the Is_Constrained flag is set, Discriminant_Constraint points
 995 --       to an element list containing the discriminant constraints in the
 996 --       same order in which the discriminants are declared.
 997 --
 998 --       If the Is_Constrained flag is not set but the discriminants of the
 999 --       unconstrained type have default initial values then this field
1000 --       points to an element list giving these default initial values in
1001 --       the same order in which the discriminants are declared. Note that
1002 --       in this case the entity cannot be a tagged record type, because
1003 --       discriminants in this case cannot have defaults.
1004 --
1005 --       If the entity is a tagged record implicit type, then this field is
1006 --       inherited from the first subtype (so that the itype is subtype
1007 --       conformant with its first subtype, which is needed when the first
1008 --       subtype overrides primitive operations inherited by the implicit
1009 --       base type).
1010 --
1011 --       In all other cases Discriminant_Constraint contains the empty
1012 --       Elist (ie it is initialized with a call to New_Elmt_List).
1013 
1014 --    Discriminant_Default_Value (Node20)
1015 --       Defined in discriminants. Points to the node representing the
1016 --       expression for the default value of the discriminant. Set to
1017 --       Empty if the discriminant has no default value.
1018 
1019 --    Discriminant_Number (Uint15)
1020 --       Defined in discriminants. Gives the ranking of a discriminant in
1021 --       the list of discriminants of the type, i.e. a sequential integer
1022 --       index starting at 1 and ranging up to number of discriminants.
1023 
1024 --    Dispatch_Table_Wrappers (Elist26) [implementation base type only]
1025 --       Defined in E_Record_Type and E_Record_Subtype entities. Set in library
1026 --       level tagged type entities if we are generating statically allocated
1027 --       dispatch tables. Points to the list of dispatch table wrappers
1028 --       associated with the tagged type. For an untagged record, contains
1029 --       No_Elist.
1030 
1031 --    DTC_Entity (Node16)
1032 --       Defined in function and procedure entities. Set to Empty unless
1033 --       the subprogram is dispatching in which case it references the
1034 --       Dispatch Table pointer Component. For regular Ada tagged this, this
1035 --       is the _Tag component. For CPP_Class types and their descendants,
1036 --       this points to the component entity in the record that holds the
1037 --       Vtable pointer for the Vtable containing the entry referencing the
1038 --       subprogram.
1039 
1040 --    DT_Entry_Count (Uint15)
1041 --       Defined in E_Component entities. Only used for component marked
1042 --       Is_Tag. Store the number of entries in the Vtable (or Dispatch Table)
1043 
1044 --    DT_Offset_To_Top_Func (Node25)
1045 --       Defined in E_Component entities. Only used for component marked
1046 --       Is_Tag. If present it stores the Offset_To_Top function used to
1047 --       provide this value in tagged types whose ancestor has discriminants.
1048 
1049 --    DT_Position (Uint15)
1050 --       Defined in function and procedure entities which are dispatching
1051 --       (should not be referenced without first checking that flag
1052 --       Is_Dispatching_Operation is True). Contains the offset into
1053 --       the Vtable for the entry that references the subprogram.
1054 
1055 --    Ekind (Ekind)
1056 --       Defined in all entities. Contains a value of the enumeration type
1057 --       Entity_Kind declared in a subsequent section in this spec.
1058 
1059 --    Elaborate_Body_Desirable (Flag210)
1060 --       Defined in package entities. Set if the elaboration circuitry detects
1061 --       a case where there is a package body that modifies one or more visible
1062 --       entities in the package spec and there is no explicit Elaborate_Body
1063 --       pragma for the package. This information is passed on to the binder,
1064 --       which attempts, but does not promise, to elaborate the body as close
1065 --       to the spec as possible.
1066 
1067 --    Elaboration_Entity (Node13)
1068 --       Defined in generic and non-generic package and subprogram entities.
1069 --       This is a counter associated with the unit that is initially set to
1070 --       zero, is incremented when an elaboration request for the unit is
1071 --       made, and is decremented when a finalization request for the unit
1072 --       is made. This is used for three purposes. First, it is used to
1073 --       implement access before elaboration checks (the counter must be
1074 --       non-zero to call a subprogram at elaboration time). Second, it is
1075 --       used to guard against repeated execution of the elaboration code.
1076 --       Third, it is used to ensure that the finalization code is executed
1077 --       only after all clients have requested it.
1078 --
1079 --       Note that we always allocate this counter, and set this field, but
1080 --       we do not always actually use it. It is only used if it is needed
1081 --       for access before elaboration use (see Elaboration_Entity_Required
1082 --       flag) or if either the spec or the body has elaboration code. If
1083 --       neither of these two conditions holds, then the entity is still
1084 --       allocated (since we don't know early enough whether or not there
1085 --       is elaboration code), but is simply not used for any purpose.
1086 
1087 --    Elaboration_Entity_Required (Flag174)
1088 --       Defined in generic and non-generic package and subprogram entities.
1089 --       Set only if Elaboration_Entity is non-Empty to indicate that the
1090 --       counter is required to be non-zero even if there is no other
1091 --       elaboration code. This occurs when the Elaboration_Entity counter
1092 --       is used for access before elaboration checks. If the counter is
1093 --       only used to prevent multiple execution of the elaboration code,
1094 --       then if there is no other elaboration code, obviously there is no
1095 --       need to set the flag.
1096 
1097 --    Encapsulating_State (Node32)
1098 --       Defined in abstract state, constant and variable entities. Contains
1099 --       the entity of an ancestor state or a single concurrent type whose
1100 --       refinement utilizes this item as a constituent.
1101 
1102 --    Enclosing_Scope (Node18)
1103 --       Defined in labels. Denotes the innermost enclosing construct that
1104 --       contains the label. Identical to the scope of the label, except for
1105 --       labels declared in the body of an accept statement, in which case the
1106 --       entry_name is the Enclosing_Scope. Used to validate goto's within
1107 --       accept statements.
1108 
1109 --    Entry_Accepted (Flag152)
1110 --       Defined in E_Entry and E_Entry_Family entities. Set if there is
1111 --       at least one accept for this entry in the task body. Used to
1112 --       generate warnings for missing accepts.
1113 
1114 --    Entry_Bodies_Array (Node19)
1115 --       Defined in protected types for which Has_Entries is true.
1116 --       This is the defining identifier for the array of entry body
1117 --       action procedures and barrier functions used by the runtime to
1118 --       execute the user code associated with each entry.
1119 
1120 --    Entry_Cancel_Parameter (Node23)
1121 --       Defined in blocks. This only applies to a block statement for
1122 --       which the Is_Asynchronous_Call_Block flag is set. It
1123 --       contains the defining identifier of an object that must be
1124 --       passed to the Cancel_Task_Entry_Call or Cancel_Protected_Entry_Call
1125 --       call in the cleanup handler added to the block by
1126 --       Exp_Ch7.Expand_Cleanup_Actions. This parameter is a Boolean
1127 --       object for task entry calls and a Communications_Block object
1128 --       in the case of protected entry calls. In both cases the objects
1129 --       are declared in outer scopes to this block.
1130 
1131 --    Entry_Component (Node11)
1132 --       Defined in formal parameters (in, in out and out parameters). Used
1133 --       only for formals of entries. References the corresponding component
1134 --       of the entry parameter record for the entry.
1135 
1136 --    Entry_Formal (Node16)
1137 --       Defined in components of the record built to correspond to entry
1138 --       parameters. This field points from the component to the formal. It
1139 --       is the back pointer corresponding to Entry_Component.
1140 
1141 --    Entry_Index_Constant (Node18)
1142 --       Defined in an entry index parameter. This is an identifier that
1143 --       eventually becomes the name of a constant representing the index
1144 --       of the entry family member whose entry body is being executed. Used
1145 --       to expand references to the entry index specification identifier.
1146 
1147 --    Entry_Index_Type (synthesized)
1148 --       Applies to an entry family. Denotes Etype of the subtype indication
1149 --       in the entry declaration. Used to resolve the index expression in an
1150 --       accept statement for a member of the family, and in the prefix of
1151 --       'COUNT when it applies to a family member.
1152 
1153 --    Entry_Parameters_Type (Node15)
1154 --       Defined in entries. Points to the access-to-record type that is
1155 --       constructed by the expander to hold a reference to the parameter
1156 --       values. This reference is manipulated (as an address) by the
1157 --       tasking runtime. The designated record represents a packaging
1158 --       up of the entry parameters (see Exp_Ch9.Expand_N_Entry_Declaration
1159 --       for further details). Entry_Parameters_Type is Empty if the entry
1160 --       has no parameters.
1161 
1162 --    Enumeration_Pos (Uint11)
1163 --       Defined in enumeration literals. Contains the position number
1164 --       corresponding to the value of the enumeration literal.
1165 
1166 --    Enumeration_Rep (Uint12)
1167 --       Defined in enumeration literals. Contains the representation that
1168 --       corresponds to the value of the enumeration literal. Note that
1169 --       this is normally the same as Enumeration_Pos except in the presence
1170 --       of representation clauses, where Pos will still represent the
1171 --       position of the literal within the type and Rep will have be the
1172 --       value given in the representation clause.
1173 
1174 --    Enumeration_Rep_Expr (Node22)
1175 --       Defined in enumeration literals. Points to the expression in an
1176 --       associated enumeration rep clause that provides the representation
1177 --       value for this literal. Empty if no enumeration rep clause for this
1178 --       literal (or if rep clause does not have an entry for this literal,
1179 --       an error situation). This is also used to catch duplicate entries
1180 --       for the same literal.
1181 
1182 --    Enum_Pos_To_Rep (Node23)
1183 --       Defined in enumeration types (but not enumeration subtypes). Set to
1184 --       Empty unless the enumeration type has a non-standard representation
1185 --       (i.e. at least one literal has a representation value different from
1186 --       its pos value). In this case, Enum_Pos_To_Rep is the entity for an
1187 --       array constructed when the type is frozen that maps Pos values to
1188 --       corresponding Rep values. The index type of this array is Natural,
1189 --       and the component type is a suitable integer type that holds the
1190 --       full range of representation values.
1191 
1192 --    Equivalent_Type (Node18)
1193 --       Defined in class wide types and subtypes, access to protected
1194 --       subprogram types, and in exception types. For a classwide type, it
1195 --       is always Empty. For a class wide subtype, it points to an entity
1196 --       created by the expander which gives the backend an understandable
1197 --       equivalent of the class subtype with a known size (given by an
1198 --       initial value). See Exp_Util.Expand_Class_Wide_Subtype for further
1199 --       details. For E_Exception_Type, this points to the record containing
1200 --       the data necessary to represent exceptions (for further details, see
1201 --       System.Standard_Library. For access_to_protected subprograms, it
1202 --       denotes a record that holds pointers to the operation and to the
1203 --       protected object. For remote Access_To_Subprogram types, it denotes
1204 --       the record that is the fat pointer representation of an RAST.
1205 
1206 --    Esize (Uint12)
1207 --       Defined in all types and subtypes, and also for components, constants,
1208 --       and variables, including exceptions where it refers to the static data
1209 --       allocated for an exception. Contains the Object_Size of the type or of
1210 --       the object. A value of zero indicates that the value is not yet known.
1211 --
1212 --       For the case of components where a component clause is present, the
1213 --       value is the value from the component clause, which must be non-
1214 --       negative (but may be zero, which is acceptable for the case of
1215 --       a type with only one possible value). It is also possible for Esize
1216 --       of a component to be set without a component clause defined, which
1217 --       means that the component size is specified, but not the position.
1218 --       See also RM_Size and the section on "Handling of Type'Size Values".
1219 --       During backend processing, the value is back annotated for all zero
1220 --       values, so that after the call to the backend, the value is set.
1221 
1222 --    Etype (Node5)
1223 --       Defined in all entities. Represents the type of the entity, which
1224 --       is itself another entity. For a type entity, points to the parent
1225 --       type for a derived type, or if the type is not derived, points to
1226 --       itself. For a subtype entity, Etype points to the base type. For
1227 --       a class wide type, points to the corresponding specific type. For a
1228 --       subprogram or subprogram type, Etype has the return type of a function
1229 --       or is set to Standard_Void_Type to represent a procedure. The Etype
1230 --       field of a package is also set to Standard_Void_Type.
1231 --
1232 --       Note one obscure case: for pragma Default_Storage_Pool (null), the
1233 --       Etype of the N_Null node is Empty.
1234 
1235 --    Extra_Accessibility (Node13)
1236 --       Defined in formal parameters in the non-generic case. Normally Empty,
1237 --       but if expansion is active, and a parameter is one for which a
1238 --       dynamic accessibility check is required, then an extra formal of type
1239 --       Natural is created (see description of field Extra_Formal), and the
1240 --       Extra_Accessibility field of the formal parameter points to the entity
1241 --       for this extra formal. Also defined in variables when compiling
1242 --       receiving stubs. In this case, a non Empty value means that this
1243 --       variable's accessibility depth has been transmitted by the caller and
1244 --       must be retrieved through the entity designed by this field instead of
1245 --       being computed.
1246 
1247 --    Extra_Accessibility_Of_Result (Node19)
1248 --       Defined in (non-generic) Function, Operator, and Subprogram_Type
1249 --       entities. Normally Empty, but if expansion is active, and a function
1250 --       is one for which "the accessibility level of the result ... determined
1251 --       by the point of call" (AI05-0234) is needed, then an extra formal of
1252 --       subtype Natural is created (see description of field Extra_Formal),
1253 --       and the Extra_Accessibility_Of_Result field of the function points to
1254 --       the entity for this extra formal.
1255 
1256 --    Extra_Constrained (Node23)
1257 --       Defined in formal parameters in the non-generic case. Normally Empty,
1258 --       but if expansion is active and a parameter is one for which a dynamic
1259 --       indication of its constrained status is required, then an extra formal
1260 --       of type Boolean is created (see description of field Extra_Formal),
1261 --       and the Extra_Constrained field of the formal parameter points to the
1262 --       entity for this extra formal. Also defined in variables when compiling
1263 --       receiving stubs. In this case, a non empty value means that this
1264 --       variable's constrained status has been transmitted by the caller and
1265 --       must be retrieved through the entity designed by this field instead of
1266 --       being computed.
1267 
1268 --    Extra_Formal (Node15)
1269 --       Defined in formal parameters in the non-generic case. Certain
1270 --       parameters require extra implicit information to be passed (e.g. the
1271 --       flag indicating if an unconstrained variant record argument is
1272 --       constrained, and the accessibility level for access parameters). See
1273 --       description of Extra_Constrained, Extra_Accessibility fields for
1274 --       further details. Extra formal parameters are constructed to represent
1275 --       these values, and chained to the end of the list of formals using the
1276 --       Extra_Formal field (i.e. the Extra_Formal field of the last "real"
1277 --       formal points to the first extra formal, and the Extra_Formal field of
1278 --       each extra formal points to the next one, with Empty indicating the
1279 --       end of the list of extra formals). Another case of Extra_Formal arises
1280 --       in connection with unnesting of subprograms, where the ARECnF formal
1281 --       that represents an activation record pointer is an extra formal.
1282 
1283 --    Extra_Formals (Node28)
1284 --       Applies to subprograms and subprogram types, and also to entries
1285 --       and entry families. Returns first extra formal of the subprogram
1286 --       or entry. Returns Empty if there are no extra formals.
1287 
1288 --    Finalization_Master (Node23) [root type only]
1289 --       Defined in access-to-controlled or access-to-class-wide types. The
1290 --       field contains the entity of the finalization master which handles
1291 --       dynamically allocated controlled objects referenced by the access
1292 --       type. Empty for access-to-subprogram types. Empty for access types
1293 --       whose designated type does not need finalization actions.
1294 
1295 --    Finalize_Storage_Only (Flag158) [base type only]
1296 --       Defined in all types. Set on direct controlled types to which a
1297 --       valid Finalize_Storage_Only pragma applies. This flag is also set on
1298 --       composite types when they have at least one controlled component and
1299 --       all their controlled components are Finalize_Storage_Only. It is also
1300 --       inherited by type derivation except for direct controlled types where
1301 --       the Finalize_Storage_Only pragma is required at each level of
1302 --       derivation.
1303 
1304 --    Finalizer (Node28)
1305 --       Applies to package declarations and bodies. Contains the entity of the
1306 --       library-level program which finalizes all package-level controlled
1307 --       objects.
1308 
1309 --    First_Component (synthesized)
1310 --       Applies to incomplete, private, protected, record and task types.
1311 --       Returns the first component by following the chain of declared
1312 --       entities for the type a component is found (one with an Ekind of
1313 --       E_Component). The discriminants are skipped. If the record is null,
1314 --       then Empty is returned.
1315 
1316 --    First_Component_Or_Discriminant (synthesized)
1317 --       Similar to First_Component, but discriminants are not skipped, so will
1318 --       find the first discriminant if discriminants are present.
1319 
1320 --    First_Entity (Node17)
1321 --       Defined in all entities which act as scopes to which a list of
1322 --       associated entities is attached (blocks, class subtypes and types,
1323 --       entries, functions, loops, packages, procedures, protected objects,
1324 --       record types and subtypes, private types, task types and subtypes).
1325 --       Points to a list of associated entities using the Next_Entity field
1326 --       as a chain pointer with Empty marking the end of the list.
1327 
1328 --    First_Exit_Statement (Node8)
1329 --       Defined in E_Loop entity. The exit statements for a loop are chained
1330 --       (in reverse order of appearance) using this field to point to the
1331 --       first entry in the chain (last exit statement in the loop). The
1332 --       entries are chained through the Next_Exit_Statement field of the
1333 --       N_Exit_Statement node with Empty marking the end of the list.
1334 
1335 --    First_Formal (synthesized)
1336 --       Applies to subprograms and subprogram types, and also to entries
1337 --       and entry families. Returns first formal of the subprogram or entry.
1338 --       The formals are the first entities declared in a subprogram or in
1339 --       a subprogram type (the designated type of an Access_To_Subprogram
1340 --       definition) or in an entry.
1341 
1342 --    First_Formal_With_Extras (synthesized)
1343 --       Applies to subprograms and subprogram types, and also in entries
1344 --       and entry families. Returns first formal of the subprogram or entry.
1345 --       Returns Empty if there are no formals. The list returned includes
1346 --       all the extra formals (see description of Extra_Formals field).
1347 
1348 --    First_Index (Node17)
1349 --       Defined in array types and subtypes. By introducing implicit subtypes
1350 --       for the index constraints, we have the same structure for constrained
1351 --       and unconstrained arrays, subtype marks and discrete ranges are
1352 --       both represented by a subtype. This function returns the tree node
1353 --       corresponding to an occurrence of the first index (NOT the entity for
1354 --       the type). Subsequent indices are obtained using Next_Index. Note that
1355 --       this field is defined for the case of string literal subtypes, but is
1356 --       always Empty.
1357 
1358 --    First_Literal (Node17)
1359 --       Defined in all enumeration types, including character and boolean
1360 --       types. This field points to the first enumeration literal entity
1361 --       for the type (i.e. it is set to First (Literals (N)) where N is
1362 --       the enumeration type definition node. A special case occurs with
1363 --       standard character and wide character types, where this field is
1364 --       Empty, since there are no enumeration literal lists in these cases.
1365 --       Note that this field is set in enumeration subtypes, but it still
1366 --       points to the first literal of the base type in this case.
1367 
1368 --    First_Private_Entity (Node16)
1369 --       Defined in all entities containing private parts (packages, protected
1370 --       types and subtypes, task types and subtypes). The entities on the
1371 --       entity chain are in order of declaration, so the entries for private
1372 --       entities are at the end of the chain. This field points to the first
1373 --       entity for the private part. It is Empty if there are no entities
1374 --       declared in the private part or if there is no private part.
1375 
1376 --    First_Rep_Item (Node6)
1377 --       Defined in all entities. If non-empty, points to a linked list of
1378 --       representation pragmas nodes and representation clause nodes that
1379 --       apply to the entity, linked using Next_Rep_Item, with Empty marking
1380 --       the end of the list. In the case of derived types and subtypes, the
1381 --       new entity inherits the chain at the point of declaration. This means
1382 --       that it is possible to have multiple instances of the same kind of rep
1383 --       item on the chain, in which case it is the first one that applies to
1384 --       the entity.
1385 --
1386 --       Note: pragmas that can apply to more than one overloadable entity,
1387 --       (Convention, Interface, Inline, Inline_Always, Import, Export,
1388 --       External) are never present on this chain when they apply to
1389 --       overloadable entities, since it is impossible for a given pragma
1390 --       to be on more than one chain at a time.
1391 --
1392 --       For most representation items, the representation information is
1393 --       reflected in other fields and flags in the entity. For example if a
1394 --       record representation clause is present, the component entities
1395 --       reflect the specified information. However, there are some items that
1396 --       are only reflected in the chain. These include:
1397 --
1398 --          Machine_Attribute pragma
1399 --          Link_Alias pragma
1400 --          Linker_Constructor pragma
1401 --          Linker_Destructor pragma
1402 --          Weak_External pragma
1403 --          Thread_Local_Storage pragma
1404 --
1405 --       If any of these items are present, then the flag Has_Gigi_Rep_Item is
1406 --       set, indicating that the backend should search the chain.
1407 --
1408 --       Other representation items are included in the chain so that error
1409 --       messages can easily locate the relevant nodes for posting errors.
1410 --       Note in particular that size clauses are defined only for this
1411 --       purpose, and should only be accessed if Has_Size_Clause is set.
1412 
1413 --    Float_Rep (Uint10)
1414 --       Defined in floating-point entities. Contains a value of type
1415 --       Float_Rep_Kind. Together with the Digits_Value uniquely defines
1416 --       the floating-point representation to be used.
1417 
1418 --    Freeze_Node (Node7)
1419 --       Defined in all entities. If there is an associated freeze node for the
1420 --       entity, this field references this freeze node. If no freeze node is
1421 --       associated with the entity, then this field is Empty. See package
1422 --       Freeze for further details.
1423 
1424 --    From_Limited_With (Flag159)
1425 --       Defined in abtract states, package and type entities. Set to True when
1426 --       the related entity is generated by the expansion of a limited with
1427 --       clause. Such an entity is said to be a "shadow" - it acts as the
1428 --       abstract view of a state or variable or as the incomplete view of a
1429 --       type by inheriting relevant attributes from the said entity.
1430 
1431 --    Full_View (Node11)
1432 --       Defined in all type and subtype entities and in deferred constants.
1433 --       References the entity for the corresponding full type or constant
1434 --       declaration. For all types other than private and incomplete types,
1435 --       this field always contains Empty. If an incomplete type E1 is
1436 --       completed by a private type E2 whose full type declaration entity is
1437 --       E3 then the full view of E1 is E2, and the full view of E2 is E3. See
1438 --       also Underlying_Type.
1439 
1440 --    Generic_Homonym (Node11)
1441 --       Defined in generic packages. The generic homonym is the entity of
1442 --       a renaming declaration inserted in every generic unit. It is used
1443 --       to resolve the name of a local entity that is given by a qualified
1444 --       name, when the generic entity itself is hidden by a local name.
1445 
1446 --    Generic_Renamings (Elist23)
1447 --       Defined in package and subprogram instances. Holds mapping that
1448 --       associates generic parameters with the corresponding instances, in
1449 --       those cases where the instance is an entity.
1450 
1451 --    Handler_Records (List10)
1452 --       Defined in subprogram and package entities. Points to a list of
1453 --       identifiers referencing the handler record entities for the
1454 --       corresponding unit.
1455 
1456 --    Has_Aliased_Components (Flag135) [implementation base type only]
1457 --       Defined in array type entities. Indicates that the component type
1458 --       of the array is aliased. Should this also be set for records to
1459 --       indicate that at least one component is aliased (see processing in
1460 --       Sem_Prag.Process_Atomic_Independent_Shared_Volatile???)
1461 
1462 --    Has_Alignment_Clause (Flag46)
1463 --       Defined in all type entities and objects. Indicates if an alignment
1464 --       clause has been given for the entity. If set, then Alignment_Clause
1465 --       returns the N_Attribute_Definition node for the alignment attribute
1466 --       definition clause. Note that it is possible for this flag to be False
1467 --       even when Alignment_Clause returns non_Empty (this happens in the case
1468 --       of derived type declarations).
1469 
1470 --    Has_All_Calls_Remote (Flag79)
1471 --       Defined in all library unit entities. Set if the library unit has an
1472 --       All_Calls_Remote pragma. Note that such entities must also be RCI
1473 --       entities, so the flag Is_Remote_Call_Interface will always be set if
1474 --       this flag is set.
1475 
1476 --    Has_Atomic_Components (Flag86) [implementation base type only]
1477 --       Defined in all types and objects. Set only for an array type or
1478 --       an array object if a valid pragma Atomic_Components applies to the
1479 --       type or object. Note that in the case of an object, this flag is
1480 --       only set on the object if there was an explicit pragma for the
1481 --       object. In other words, the proper test for whether an object has
1482 --       atomic components is to see if either the object or its base type
1483 --       has this flag set. Note that in the case of a type, the pragma will
1484 --       be chained to the rep item chain of the first subtype in the usual
1485 --       manner.
1486 
1487 --    Has_Attach_Handler (synthesized)
1488 --       Applies to record types that are constructed by the expander to
1489 --       represent protected types. Returns True if there is at least one
1490 --       Attach_Handler pragma in the corresponding specification.
1491 
1492 --    Has_Biased_Representation (Flag139)
1493 --       Defined in discrete types (where it applies to the type'size value),
1494 --       and to objects (both stand-alone and components), where it applies to
1495 --       the size of the object from a size or record component clause. In
1496 --       all cases it indicates that the size in question is smaller than
1497 --       would normally be required, but that the size requirement can be
1498 --       satisfied by using a biased representation, in which stored values
1499 --       have the low bound (Expr_Value (Type_Low_Bound (T)) subtracted to
1500 --       reduce the required size. For example, a type with a range of 1..2
1501 --       takes one bit, using 0 to represent 1 and 1 to represent 2.
1502 --
1503 --       Note that in the object and component cases, the flag is only set if
1504 --       the type is unbiased, but the object specifies a smaller size than the
1505 --       size of the type, forcing biased representation for the object, but
1506 --       the subtype is still an unbiased type.
1507 
1508 --    Has_Completion (Flag26)
1509 --       Defined in all entities that require a completion (functions,
1510 --       procedures, private types, limited private types, incomplete types,
1511 --       constants and packages that require a body). The flag is set if the
1512 --       completion has been encountered and analyzed.
1513 
1514 --    Has_Completion_In_Body (Flag71)
1515 --       Defined in all entities for types and subtypes. Set only in "Taft
1516 --       amendment types" (incomplete types whose full declaration appears in
1517 --       the package body).
1518 
1519 --    Has_Complex_Representation (Flag140) [implementation base type only]
1520 --       Defined in all type entities. Set only for a record base type to
1521 --       which a valid pragma Complex_Representation applies.
1522 
1523 --    Has_Component_Size_Clause (Flag68) [implementation base type only]
1524 --       Defined in all type entities. Set if a component size clause is
1525 --       Defined for the given type. Note that this flag can be False even
1526 --       if Component_Size is non-zero (happens in the case of derived types).
1527 
1528 --    Has_Constrained_Partial_View (Flag187)
1529 --       Defined in private type and their completions, when the private
1530 --       type has no discriminants and the full view has discriminants with
1531 --       defaults. In Ada 2005 heap-allocated objects of such types are not
1532 --       constrained, and can change their discriminants with full assignment.
1533 --
1534 --       Ada 2012 has an additional rule (3.3. (23/10.3)) concerning objects
1535 --       declared in a generic package body. Objects whose type is an untagged
1536 --       generic formal private type are considered to have a constrained
1537 --       partial view. The predicate Object_Type_Has_Constrained_Partial_View
1538 --       in sem_aux is used to test for this case.
1539 
1540 --    Has_Contiguous_Rep (Flag181)
1541 --       Defined in enumeration types. Set if the type as a representation
1542 --       clause whose entries are successive integers.
1543 
1544 --    Has_Controlled_Component (Flag43) [base type only]
1545 --       Defined in all type and subtype entities. Set only for composite type
1546 --       entities which contain a component that either is a controlled type,
1547 --       or itself contains controlled component (i.e. either Is_Controlled or
1548 --       Has_Controlled_Component is set for at least one component).
1549 
1550 --    Has_Controlling_Result (Flag98)
1551 --       Defined in E_Function entities. Set if the function is a primitive
1552 --       function of a tagged type which can dispatch on result.
1553 
1554 --    Has_Convention_Pragma (Flag119)
1555 --       Defined in all entities. Set for an entity for which a valid pragma
1556 --       Convention, Import, or Export has been given. Used to prevent more
1557 --       than one such pragma appearing for a given entity (RM B.1(45)).
1558 
1559 --    Has_Default_Aspect (Flag39) [base type only]
1560 --       Defined in entities for types and subtypes, set for scalar types with
1561 --       a Default_Value aspect and array types with a Default_Component_Value
1562 --       aspect. If this flag is set, then a corresponding aspect specification
1563 --       node will be present on the rep item chain for the entity. For a
1564 --       derived type that inherits a default from its ancestor, the default
1565 --       value is set, but it may be overridden by an aspect declaration on
1566 --       type derivation.
1567 
1568 --    Has_Default_Init_Cond (Flag3) [base type only]
1569 --       Defined in all type entities. Set if pragma Default_Initial_Condition
1570 --       applies to a private type and by extension to its full view. This flag
1571 --       is mutually exclusive with flag Has_Inherited_Default_Init_Cond.
1572 
1573 --    Has_Delayed_Aspects (Flag200)
1574 --      Defined in all entities. Set if the Rep_Item chain for the entity has
1575 --      one or more N_Aspect_Definition nodes chained which are not to be
1576 --      evaluated till the freeze point. The aspect definition expression
1577 --      clause has been preanalyzed to get visibility at the point of use,
1578 --      but no other action has been taken.
1579 
1580 --    Has_Delayed_Freeze (Flag18)
1581 --       Defined in all entities. Set to indicate that an explicit freeze
1582 --       node must be generated for the entity at its freezing point. See
1583 --       separate section ("Delayed Freezing and Elaboration") for details.
1584 
1585 --    Has_Delayed_Rep_Aspects (Flag261)
1586 --       Defined in all types and subtypes. This flag is set if there is at
1587 --       least one aspect for a representation characteristic that has to be
1588 --       delayed and is one of the characteristics that may be inherited by
1589 --       types derived from this type if not overridden. If this flag is set,
1590 --       then types derived from this type have May_Inherit_Delayed_Rep_Aspects
1591 --       set, signalling that Freeze.Inherit_Delayed_Rep_Aspects must be called
1592 --       at the freeze point of the derived type.
1593 
1594 --    Has_Discriminants (Flag5)
1595 --       Defined in all types and subtypes. For types that are allowed to have
1596 --       discriminants (record types and subtypes, task types and subtypes,
1597 --       protected types and subtypes, private types, limited private types,
1598 --       and incomplete types), indicates if the corresponding type or subtype
1599 --       has a known discriminant part. Always false for all other types.
1600 
1601 --    Has_Dispatch_Table (Flag220)
1602 --       Defined in E_Record_Types that are tagged. Set to indicate that the
1603 --       corresponding dispatch table is already built. This flag is used to
1604 --       avoid duplicate construction of library level dispatch tables (because
1605 --       the declaration of library level objects cause premature construction
1606 --       of the table); otherwise the code that builds the table is added at
1607 --       the end of the list of declarations of the package.
1608 
1609 --    Has_Dynamic_Predicate_Aspect (Flag258)
1610 --       Defined in all types and subtypes. Set if a Dynamic_Predicate aspect
1611 --       was explicitly applied to the type. Generally we treat predicates as
1612 --       static if possible, regardless of whether they are specified using
1613 --       Predicate, Static_Predicate, or Dynamic_Predicate. And if a predicate
1614 --       can be treated as static (i.e. its expression is predicate-static),
1615 --       then the flag Has_Static_Predicate will be set True. But there are
1616 --       cases where legality is affected by the presence of an explicit
1617 --       Dynamic_Predicate aspect. For example, even if a predicate looks
1618 --       static, you can't use it in a case statement if there is an explicit
1619 --       Dynamic_Predicate aspect specified. So test Has_Static_Predicate if
1620 --       you just want to know if the predicate can be evaluated statically,
1621 --       but test Has_Dynamic_Predicate_Aspect to enforce legality rules about
1622 --       the use of dynamic predicates.
1623 
1624 --    Has_Entries (synthesized)
1625 --       Applies to concurrent types. True if any entries are declared
1626 --       within the task or protected definition for the type.
1627 
1628 --    Has_Enumeration_Rep_Clause (Flag66)
1629 --       Defined in enumeration types. Set if an enumeration representation
1630 --       clause has been given for this enumeration type. Used to prevent more
1631 --       than one enumeration representation clause for a given type. Note
1632 --       that this does not imply a representation with holes, since the rep
1633 --       clause may merely confirm the default 0..N representation.
1634 
1635 --    Has_Exit (Flag47)
1636 --       Defined in loop entities. Set if the loop contains an exit statement.
1637 
1638 --    Has_Expanded_Contract (Flag240)
1639 --       Defined in functions, procedures, entries, and entry families. Set
1640 --       when a subprogram has a N_Contract node that has been expanded. The
1641 --       flag prevents double expansion of a contract when a construct is
1642 --       rewritten into something else and subsequently reanalyzed/expanded.
1643 
1644 --    Has_Foreign_Convention (synthesized)
1645 --       Applies to all entities. Determines if the Convention for the
1646 --       entity is a foreign convention (i.e. is other than Convention_Ada,
1647 --       Convention_Intrinsic, Convention_Entry or Convention_Protected).
1648 
1649 --    Has_Forward_Instantiation (Flag175)
1650 --       Defined in package entities. Set for packages that instantiate local
1651 --       generic entities before the corresponding generic body has been seen.
1652 --       If a package has a forward instantiation, we cannot inline subprograms
1653 --       appearing in the same package because the placement requirements of
1654 --       the instance will conflict with the linear elaboration of front-end
1655 --       inlining.
1656 
1657 --    Has_Fully_Qualified_Name (Flag173)
1658 --       Defined in all entities. Set if the name in the Chars field has been
1659 --       replaced by the fully qualified name, as used for debug output. See
1660 --       Exp_Dbug for a full description of the use of this flag and also the
1661 --       related flag Has_Qualified_Name.
1662 
1663 --    Has_Gigi_Rep_Item (Flag82)
1664 --       Defined in all entities. Set if the rep item chain (referenced by
1665 --       First_Rep_Item and linked through the Next_Rep_Item chain) contains a
1666 --       representation item that needs to be specially processed by the back
1667 --       end, i.e. one of the following items:
1668 --
1669 --          Machine_Attribute pragma
1670 --          Linker_Alias pragma
1671 --          Linker_Constructor pragma
1672 --          Linker_Destructor pragma
1673 --          Weak_External pragma
1674 --          Thread_Local_Storage pragma
1675 --
1676 --       If this flag is set, then the backend should scan the rep item chain
1677 --       to process any of these items that appear. At least one such item will
1678 --       be present.
1679 --
1680 --    Has_Homonym (Flag56)
1681 --       Defined in all entities. Set if an entity has a homonym in the same
1682 --       scope. Used by the backend to generate unique names for all entities.
1683 
1684 --    Has_Implicit_Dereference (Flag251)
1685 --       Defined in types and discriminants. Set if the type has an aspect
1686 --       Implicit_Dereference. Set also on the discriminant named in the aspect
1687 --       clause, to simplify type resolution.
1688 
1689 --    Has_Independent_Components (Flag34) [implementation base type only]
1690 --       Defined in all types and objects. Set only for a record type or an
1691 --       array type or array object if a valid pragma Independent_Components
1692 --       applies to the type or object. Note that in the case of an object,
1693 --       this flag is only set on the object if there was an explicit pragma
1694 --       for the object. In other words, the proper test for whether an object
1695 --       has independent components is to see if either the object or its base
1696 --       type has this flag set. Note that in the case of a type, the pragma
1697 --       will be chained to the rep item chain of the first subtype in the
1698 --       usual manner.
1699 
1700 --    Has_Inheritable_Invariants (Flag248)
1701 --       Defined in all type entities. Set on private types and interface types
1702 --       which define at least one class-wide invariant. Such invariants must
1703 --       be inherited by derived types. The flag is also set on the full view
1704 --       of a private type for completeness.
1705 
1706 --    Has_Inherited_Default_Init_Cond (Flag133) [base type only]
1707 --       Defined in all type entities. Set when a derived type inherits pragma
1708 --       Default_Initial_Condition from its parent type. This flag is mutually
1709 --       exclusive with flag Has_Default_Init_Cond.
1710 
1711 --    Has_Inherited_Invariants (Flag291)
1712 --       Defined in all type entities. Set on private extensions and derived
1713 --       types which inherit at least on class-wide invariant from a parent or
1714 --       an interface type. The flag is also set on the full view of a private
1715 --       extension for completeness.
1716 
1717 --    Has_Initial_Value (Flag219)
1718 --       Defined in entities for variables and out parameters. Set if there
1719 --       is an explicit initial value expression in the declaration of the
1720 --       variable. Note that this is set only if this initial value is
1721 --       explicit, it is not set for the case of implicit initialization
1722 --       of access types or controlled types. Always set to False for out
1723 --       parameters. Also defined in entities for in and in-out parameters,
1724 --       but always false in these cases.
1725 
1726 --    Has_Interrupt_Handler (synthesized)
1727 --       Applies to all protected type entities. Set if the protected type
1728 --       definition contains at least one procedure to which a pragma
1729 --       Interrupt_Handler applies.
1730 
1731 --    Has_Invariants (synthesized)
1732 --       Defined in all type entities. True if the type defines at least one
1733 --       invariant of its own or inherits at least one class-wide invariant
1734 --       from a parent type or an interface.
1735 
1736 --    Has_Loop_Entry_Attributes (Flag260)
1737 --       Defined in E_Loop entities. Set when the loop is subject to at least
1738 --       one attribute 'Loop_Entry. The flag also implies that the loop has
1739 --       already been transformed. See Expand_Loop_Entry_Attribute for details.
1740 
1741 --    Has_Machine_Radix_Clause (Flag83)
1742 --       Defined in decimal types and subtypes, set if a Machine_Radix
1743 --       representation clause is present. This flag is used to detect
1744 --       the error of multiple machine radix clauses for a single type.
1745 
1746 --    Has_Master_Entity (Flag21)
1747 --       Defined in entities that can appear in the scope stack (see spec
1748 --       of Sem). It is set if a task master entity (_master) has been
1749 --       declared and initialized in the corresponding scope.
1750 
1751 --    Has_Missing_Return (Flag142)
1752 --       Defined in functions and generic functions. Set if there is one or
1753 --       more missing return statements in the function. This is used to
1754 --       control wrapping of the body in Exp_Ch6 to ensure that the program
1755 --       error exception is correctly raised in this case at runtime.
1756 
1757 --    Has_Nested_Block_With_Handler (Flag101)
1758 --       Defined in scope entities. Set if there is a nested block within the
1759 --       scope that has an exception handler and the two scopes are in the
1760 --       same procedure. This is used by the backend for controlling certain
1761 --       optimizations to ensure that they are consistent with exceptions.
1762 --       See documentation in backend for further details.
1763 
1764 --    Has_Nested_Subprogram (Flag282)
1765 --      Defined in subprogram entities. Set for a subprogram which contains at
1766 --      least one nested subprogram.
1767 
1768 --    Has_Non_Limited_View (synth)
1769 --       Defined in E_Incomplete_Type, E_Incomplete_Subtype, E_Class_Wide_Type,
1770 --       E_Abstract_State entities. True if their Non_Limited_View attribute
1771 --       is present.
1772 
1773 --    Has_Non_Null_Abstract_State (synth)
1774 --       Defined in package entities. True if the package is subject to a non-
1775 --       null Abstract_State aspect/pragma.
1776 
1777 --    Has_Non_Null_Visible_Refinement (synth)
1778 --       Defined in E_Abstract_State entities. True if the state has a visible
1779 --       refinement of at least one variable or state constituent as expressed
1780 --       in aspect/pragma Refined_State.
1781 
1782 --    Has_Non_Standard_Rep (Flag75) [implementation base type only]
1783 --       Defined in all type entities. Set when some representation clause
1784 --       or pragma causes the representation of the item to be significantly
1785 --       modified. In this category are changes of small or radix for a
1786 --       fixed-point type, change of component size for an array, and record
1787 --       or enumeration representation clauses, as well as packed pragmas.
1788 --       All other representation clauses (e.g. Size and Alignment clauses)
1789 --       are not considered to be significant since they do not affect
1790 --       stored bit patterns.
1791 
1792 --    Has_Null_Abstract_State (synth)
1793 --       Defined in package entities. True if the package is subject to a null
1794 --       Abstract_State aspect/pragma.
1795 
1796 --    Has_Null_Visible_Refinement (synth)
1797 --       Defined in E_Abstract_State entities. True if the state has a visible
1798 --       null refinement as expressed in aspect/pragma Refined_State.
1799 
1800 --    Has_Object_Size_Clause (Flag172)
1801 --       Defined in entities for types and subtypes. Set if an Object_Size
1802 --       clause has been processed for the type Used to prevent multiple
1803 --       Object_Size clauses for a given entity.
1804 
1805 --    Has_Out_Or_In_Out_Parameter (Flag110)
1806 --       Present in subprograms, generic subprograms, entries, and entry
1807 --       families. Set if they have at least one OUT or IN OUT parameter
1808 --       (allowed for functions only in Ada 2012).
1809 
1810 --    Has_Own_Invariants (Flag232)
1811 --       Defined in all type entities. Set on any type which defines at least
1812 --       one invariant of its own. The flag is also set on the full view of a
1813 --       private extension or a private type for completeness.
1814 
1815 --    Has_Per_Object_Constraint (Flag154)
1816 --       Defined in E_Component entities. Set if the subtype of the component
1817 --       has a per object constraint. Per object constraints result from the
1818 --       following situations :
1819 --
1820 --       1. N_Attribute_Reference - when the prefix is the enclosing type and
1821 --          the attribute is Access.
1822 --       2. N_Discriminant_Association - when the expression uses the
1823 --          discriminant of the enclosing type.
1824 --       3. N_Index_Or_Discriminant_Constraint - when at least one of the
1825 --          individual constraints is a per object constraint.
1826 --       4. N_Range - when the lower or upper bound uses the discriminant of
1827 --          the enclosing type.
1828 --       5. N_Range_Constraint - when the range expression uses the
1829 --          discriminant of the enclosing type.
1830 
1831 --    Has_Pragma_Controlled (Flag27) [implementation base type only]
1832 --       Defined in access type entities. It is set if a pragma Controlled
1833 --       applies to the access type.
1834 
1835 --    Has_Pragma_Elaborate_Body (Flag150)
1836 --       Defined in all entities. Set in compilation unit entities if a
1837 --       pragma Elaborate_Body applies to the compilation unit.
1838 
1839 --    Has_Pragma_Inline (Flag157)
1840 --       Defined in all entities. Set for functions and procedures for which a
1841 --       pragma Inline or Inline_Always applies to the subprogram. Note that
1842 --       this flag can be set even if Is_Inlined is not set. This happens for
1843 --       pragma Inline (if Inline_Active is False). In other words, the flag
1844 --       Has_Pragma_Inline represents the formal semantic status, and is used
1845 --       for checking semantic correctness. The flag Is_Inlined indicates
1846 --       whether inlining is actually active for the entity.
1847 
1848 --    Has_Pragma_Inline_Always (Flag230)
1849 --       Defined in all entities. Set for functions and procedures for which a
1850 --       pragma Inline_Always applies. Note that if this flag is set, the flag
1851 --       Has_Pragma_Inline is also set.
1852 
1853 --    Has_Pragma_No_Inline (Flag201)
1854 --       Defined in all entities. Set for functions and procedures for which a
1855 --       pragma No_Inline applies. Note that if this flag is set, the flag
1856 --       Has_Pragma_Inline_Always cannot be set.
1857 
1858 --    Has_Pragma_Ordered (Flag198) [implementation base type only]
1859 --       Defined in entities for enumeration types. If set indicates that a
1860 --       valid pragma Ordered was given for the type. This flag is inherited
1861 --       by derived enumeration types. We don't need to distinguish the derived
1862 --       case since we allow multiple occurrences of this pragma anyway.
1863 
1864 --    Has_Pragma_Pack (Flag121) [implementation base type only]
1865 --       Defined in array and record type entities. If set, indicates that a
1866 --       valid pragma Pack was given for the type. Note that this flag is not
1867 --       inherited by derived type. See also the Is_Packed flag.
1868 
1869 --    Has_Pragma_Preelab_Init (Flag221)
1870 --       Defined in type and subtype entities. If set indicates that a valid
1871 --       pragma Preelaborable_Initialization applies to the type.
1872 
1873 --    Has_Pragma_Pure (Flag203)
1874 --       Defined in all entities. If set, indicates that a valid pragma Pure
1875 --       was given for the entity. In some cases, we need to test whether
1876 --       Is_Pure was explicitly set using this pragma.
1877 
1878 --    Has_Pragma_Pure_Function (Flag179)
1879 --       Defined in all entities. If set, indicates that a valid pragma
1880 --       Pure_Function was given for the entity. In some cases, we need to test
1881 --       whether Is_Pure was explicitly set using this pragma. We also set
1882 --       this flag for some internal entities that we know should be treated
1883 --       as pure for optimization purposes.
1884 
1885 --    Has_Pragma_Thread_Local_Storage (Flag169)
1886 --       Defined in all entities. If set, indicates that a valid pragma
1887 --       Thread_Local_Storage was given for the entity.
1888 
1889 --    Has_Pragma_Unmodified (Flag233)
1890 --       Defined in all entities. Can only be set for variables (E_Variable,
1891 --       E_Out_Parameter, E_In_Out_Parameter). Set if a valid pragma Unmodified
1892 --       applies to the variable, indicating that no warning should be given
1893 --       if the entity is never modified. Note that clients should generally
1894 --       not test this flag directly, but instead use function Has_Unmodified.
1895 
1896 --    Has_Pragma_Unreferenced (Flag180)
1897 --       Defined in all entities. Set if a valid pragma Unreferenced applies
1898 --       to the entity, indicating that no warning should be given if the
1899 --       entity has no references, but a warning should be given if it is
1900 --       in fact referenced. For private types, this flag is set in both the
1901 --       private entity and full entity if the pragma applies to either. Note
1902 --       that clients should generally not test this flag directly, but instead
1903 --       use function Has_Unreferenced.
1904 
1905 --  ??? this real description was clobbered
1906 
1907 --    Has_Pragma_Unreferenced_Objects (Flag212)
1908 --       Defined in all entities. Set if a valid pragma Unused applies to an
1909 --       entity, indicating that warnings should be given if the entity is
1910 --       modified or referenced. This pragma is equivalent to a pair of
1911 --       Unmodified and Unreferenced pragmas.
1912 
1913 --    Has_Pragma_Unused (Flag294)
1914 --       Defined in all entries. Set if a valid pragma Unused applies to a
1915 --       variable or entity, indicating that warnings should not be given if
1916 --       it is never modified or referenced. Note: This pragma is exactly
1917 --       equivalent Unmodified and Unreference combined.
1918 
1919 --    Has_Predicates (Flag250)
1920 --       Defined in type and subtype entities. Set if a pragma Predicate or
1921 --       Predicate aspect applies to the type or subtype, or if it inherits a
1922 --       Predicate aspect from its parent or progenitor types.
1923 --
1924 --       Note: this flag is set on both partial and full view of types to which
1925 --       a Predicate pragma or aspect applies.
1926 
1927 --    Has_Primitive_Operations (Flag120) [base type only]
1928 --       Defined in all type entities. Set if at least one primitive operation
1929 --       is defined for the type.
1930 
1931 --    Has_Private_Ancestor (Flag151)
1932 --       Applies to type extensions. True if some ancestor is derived from a
1933 --       private type, making some components invisible and aggregates illegal.
1934 --       This flag is set at the point of derivation. The legality of the
1935 --       aggregate must be rechecked because it also depends on the visibility
1936 --       at the point the aggregate is resolved. See sem_aggr.adb. This is part
1937 --       of AI05-0115.
1938 
1939 --    Has_Private_Declaration (Flag155)
1940 --       Defined in all entities. Set if it is the defining entity of a private
1941 --       type declaration or its corresponding full declaration. This flag is
1942 --       thus preserved when the full and the partial views are exchanged, to
1943 --       indicate if a full type declaration is a completion. Used for semantic
1944 --       checks in E.4(18) and elsewhere.
1945 
1946 --    Has_Protected (Flag271) [base type only]
1947 --       Defined in all type entities. Set on protected types themselves, and
1948 --       also (recursively) on any composite type which has a component for
1949 --       which Has_Protected is set, unless the protected type is declared in
1950 --       the private part of an internal unit. The meaning is that restrictions
1951 --       for protected types apply to this type. Note: the flag is not set on
1952 --       access types, even if they designate an object that Has_Protected.
1953 
1954 --    Has_Qualified_Name (Flag161)
1955 --       Defined in all entities. Set if the name in the Chars field has
1956 --       been replaced by its qualified name, as used for debug output. See
1957 --       Exp_Dbug for a full description of qualification requirements. For
1958 --       some entities, the name is the fully qualified name, but there are
1959 --       exceptions. In particular, for local variables in procedures, we
1960 --       do not include the procedure itself or higher scopes. See also the
1961 --       flag Has_Fully_Qualified_Name, which is set if the name does indeed
1962 --       include the fully qualified name.
1963 
1964 --    Has_RACW (Flag214)
1965 --       Defined in package spec entities. Set if the spec contains the
1966 --       declaration of a remote access-to-classwide type.
1967 
1968 --    Has_Record_Rep_Clause (Flag65) [implementation base type only]
1969 --       Defined in record types. Set if a record representation clause has
1970 --       been given for this record type. Used to prevent more than one such
1971 --       clause for a given record type. Note that this is initially cleared
1972 --       for a derived type, even though the representation is inherited. See
1973 --       also the flag Has_Specified_Layout.
1974 
1975 --    Has_Recursive_Call (Flag143)
1976 --       Defined in procedures. Set if a direct parameterless recursive call
1977 --       is detected while analyzing the body. Used to activate some error
1978 --       checks for infinite recursion.
1979 
1980 --    Has_Shift_Operator (Flag267) [base type only]
1981 --       Defined in integer types. Set in the base type of an integer type for
1982 --       which at least one of the shift operators is defined.
1983 
1984 --    Has_Size_Clause (Flag29)
1985 --       Defined in entities for types and objects. Set if a size clause is
1986 --       defined for the entity. Used to prevent multiple Size clauses for a
1987 --       given entity. Note that it is always initially cleared for a derived
1988 --       type, even though the Size for such a type is inherited from a Size
1989 --       clause given for the parent type.
1990 
1991 --    Has_Small_Clause (Flag67)
1992 --       Defined in ordinary fixed point types (but not subtypes). Indicates
1993 --       that a small clause has been given for the entity. Used to prevent
1994 --       multiple Small clauses for a given entity. Note that it is always
1995 --       initially cleared for a derived type, even though the Small for such
1996 --       a type is inherited from a Small clause given for the parent type.
1997 
1998 --    Has_Specified_Layout (Flag100) [implementation base type only]
1999 --       Defined in all type entities. Set for a record type or subtype if
2000 --       the record layout has been specified by a record representation
2001 --       clause. Note that this differs from the flag Has_Record_Rep_Clause
2002 --       in that it is inherited by a derived type. Has_Record_Rep_Clause is
2003 --       used to indicate that the type is mentioned explicitly in a record
2004 --       representation clause, and thus is not inherited by a derived type.
2005 --       This flag is always False for non-record types.
2006 
2007 --    Has_Specified_Stream_Input (Flag190)
2008 --    Has_Specified_Stream_Output (Flag191)
2009 --    Has_Specified_Stream_Read (Flag192)
2010 --    Has_Specified_Stream_Write (Flag193)
2011 --       Defined in all type and subtype entities. Set for a given view if the
2012 --       corresponding stream-oriented attribute has been defined by an
2013 --       attribute definition clause. When such a clause occurs, a TSS is set
2014 --       on the underlying full view; the flags are used to track visibility of
2015 --       the attribute definition clause for partial or incomplete views.
2016 
2017 --    Has_Static_Discriminants (Flag211)
2018 --       Defined in record subtypes constrained by discriminant values. Set if
2019 --       all the discriminant values have static values, meaning that in the
2020 --       case of a variant record, the component list can be trimmed down to
2021 --       include only the components corresponding to these discriminants.
2022 
2023 --    Has_Static_Predicate (Flag269)
2024 --       Defined in all types and subtypes. Set if the type (which must be a
2025 --       scalar type) has a predicate whose expression is predicate-static.
2026 --       This can result from the use of any Predicate, Static_Predicate, or
2027 --       Dynamic_Predicate aspect. We can distinguish these cases by testing
2028 --       Has_Static_Predicate_Aspect and Has_Dynamic_Predicate_Aspect. See
2029 --       description of the latter flag for further information on dynamic
2030 --       predicates which are also static.
2031 
2032 --    Has_Static_Predicate_Aspect (Flag259)
2033 --       Defined in all types and subtypes. Set if a Static_Predicate aspect
2034 --       applies to the type. Note that we can tell if a static predicate is
2035 --       present by looking at Has_Static_Predicate, but this could have come
2036 --       from a Predicate aspect or pragma or even from a Dynamic_Predicate
2037 --       aspect. When we need to know the difference (e.g. to know what set of
2038 --       check policies apply, use this flag and Has_Dynamic_Predicate_Aspect
2039 --       to determine which case we have).
2040 
2041 --    Has_Storage_Size_Clause (Flag23) [implementation base type only]
2042 --       Defined in task types and access types. It is set if a Storage_Size
2043 --       clause is present for the type. Used to prevent multiple clauses for
2044 --       one type. Note that this flag is initially cleared for a derived type
2045 --       even though the Storage_Size for such a type is inherited from a
2046 --       Storage_Size clause given for the parent type. Note that in the case
2047 --       of access types, this flag is defined only in the root type, since a
2048 --       storage size clause cannot be given to a derived type.
2049 
2050 --    Has_Stream_Size_Clause (Flag184)
2051 --       Defined in all entities. It is set for types which have a Stream_Size
2052 --       clause attribute. Used to prevent multiple Stream_Size clauses for a
2053 --       given entity, and also whether it is necessary to check for a stream
2054 --       size clause.
2055 
2056 --    Has_Task (Flag30) [base type only]
2057 --       Defined in all type entities. Set on task types themselves, and also
2058 --       (recursively) on any composite type which has a component for which
2059 --       Has_Task is set. The meaning is that an allocator or declaration of
2060 --       such an object must create the required tasks. Note: the flag is not
2061 --       set on access types, even if they designate an object that Has_Task.
2062 
2063 --    Has_Timing_Event (Flag289) [base type only]
2064 --       Defined in all type entities. Set on language defined type
2065 --       Ada.Real_Time.Timing_Events.Timing_Event, and also (recursively) on
2066 --       any composite type which has a component for which Has_Timing_Event
2067 --       is set. Used for the No_Local_Timing_Event restriction.
2068 
2069 --    Has_Thunks (Flag228)
2070 --       Applies to E_Constant entities marked Is_Tag. True for secondary tag
2071 --       referencing a dispatch table whose contents are pointers to thunks.
2072 
2073 --    Has_Unchecked_Union (Flag123) [base type only]
2074 --       Defined in all type entities. Set on unchecked unions themselves
2075 --       and (recursively) on any composite type which has a component for
2076 --       which Has_Unchecked_Union is set. The meaning is that a comparison
2077 --       operation or 'Valid_Scalars reference for the type is not permitted.
2078 --       Note that the flag is not set on access types, even if they designate
2079 --       an object that has the flag Has_Unchecked_Union set.
2080 
2081 --    Has_Unknown_Discriminants (Flag72)
2082 --       Defined in all entities. Set for types with unknown discriminants.
2083 --       Types can have unknown discriminants either from their declaration or
2084 --       through type derivation. The use of this flag exactly meets the spec
2085 --       in RM 3.7(26). Note that all class-wide types are considered to have
2086 --       unknown discriminants. Note that both flags Has_Discriminants and
2087 --       Has_Unknown_Discriminants may be true for a type. Class-wide types and
2088 --       their subtypes have unknown discriminants and can have declared ones
2089 --       as well. Private types declared with unknown discriminants may have a
2090 --       full view that has explicit discriminants, and both flag will be set
2091 --       on the partial view, to ensure that discriminants are properly
2092 --       inherited in certain contexts.
2093 
2094 --    Has_Visible_Refinement (Flag263)
2095 --       Defined in E_Abstract_State entities. Set when a state has at least
2096 --       one refinement constituent and analysis is in the region between
2097 --       pragma Refined_State and the end of the package body declarations.
2098 
2099 --    Has_Volatile_Components (Flag87) [implementation base type only]
2100 --       Defined in all types and objects. Set only for an array type or array
2101 --       object if a valid pragma Volatile_Components or a valid pragma
2102 --       Atomic_Components applies to the type or object. Note that in the case
2103 --       of an object, this flag is only set on the object if there was an
2104 --       explicit pragma for the object. In other words, the proper test for
2105 --       whether an object has volatile components is to see if either the
2106 --       object or its base type has this flag set. Note that in the case of a
2107 --       type the pragma will be chained to the rep item chain of the first
2108 --       subtype in the usual manner.
2109 
2110 --    Has_Xref_Entry (Flag182)
2111 --       Defined in all entities. Set if an entity has an entry in the Xref
2112 --       information generated in ali files. This is true for all source
2113 --       entities in the extended main source file. It is also true of entities
2114 --       in other packages that are referenced directly or indirectly from the
2115 --       main source file (indirect reference occurs when the main source file
2116 --       references an entity with a type reference. See package Lib.Xref for
2117 --       further details).
2118 
2119 --    Hiding_Loop_Variable (Node8)
2120 --       Defined in variables. Set only if a variable of a discrete type is
2121 --       hidden by a loop variable in the same local scope, in which case
2122 --       the Hiding_Loop_Variable field of the hidden variable points to
2123 --       the E_Loop_Parameter entity doing the hiding. Used in processing
2124 --       warning messages if the hidden variable turns out to be unused
2125 --       or is referenced without being set.
2126 
2127 --    Homonym (Node4)
2128 --       Defined in all entities. Link for list of entities that have the
2129 --       same source name and that are declared in the same or enclosing
2130 --       scopes. Homonyms in the same scope are overloaded. Used for name
2131 --       resolution and for the generation of debugging information.
2132 
2133 --    Implementation_Base_Type (synthesized)
2134 --       Applies to all entities. For types, similar to Base_Type, but never
2135 --       returns a private type when applied to a non-private type. Instead in
2136 --       this case, it always returns the Underlying_Type of the base type, so
2137 --       that we still have a concrete type. For entities other than types,
2138 --       returns the entity unchanged.
2139 
2140 --    Import_Pragma (Node35)
2141 --       Defined in subprogram entities. Set if a valid pragma Import or pragma
2142 --       Import_Function or pragma Import_Procedure applies to the subprogram,
2143 --       in which case this field points to the pragma (we can't use the normal
2144 --       Rep_Item chain mechanism, because a single pragma Import can apply
2145 --       to multiple subprogram entities).
2146 
2147 --    Incomplete_Actuals (Elist24)
2148 --       Defined on package entities that are instances. Indicates the actuals
2149 --       types in the instantiation that are limited views. If this list is
2150 --       not empty, the instantiation, which appears in a package declaration,
2151 --       is relocated to the corresponding package body, which must have a
2152 --       corresponding nonlimited with_clause.
2153 
2154 --    In_Package_Body (Flag48)
2155 --       Defined in package entities. Set on the entity that denotes the
2156 --       package (the defining occurrence of the package declaration) while
2157 --       analyzing and expanding the package body. Reset on completion of
2158 --       analysis/expansion.
2159 
2160 --    In_Private_Part (Flag45)
2161 --       Defined in all entities. Can be set only in package entities and
2162 --       objects. For package entities, this flag is set to indicate that the
2163 --       private part of the package is being analyzed. The flag is reset at
2164 --       the end of the package declaration. For objects it indicates that the
2165 --       declaration of the object occurs in the private part of a package.
2166 
2167 --    Initialization_Statements (Node28)
2168 --       Defined in constants and variables. For a composite object initialized
2169 --       initialized with an aggregate that has been converted to a sequence
2170 --       of assignments, points to a block statement containing the
2171 --       assignments.
2172 
2173 --    Inner_Instances (Elist23)
2174 --       Defined in generic units. Contains element list of units that are
2175 --       instantiated within the given generic. Used to diagnose circular
2176 --       instantiations.
2177 
2178 --    Interface_Alias (Node25)
2179 --       Defined in subprograms that cover a primitive operation of an abstract
2180 --       interface type. Can be set only if the Is_Hidden flag is also set,
2181 --       since such entities are always hidden. Points to its associated
2182 --       interface subprogram. It is used to register the subprogram in
2183 --       secondary dispatch table of the interface (Ada 2005: AI-251).
2184 
2185 --    Interface_Name (Node21)
2186 --       Defined in constants, variables, exceptions, functions, procedures,
2187 --       and packages. Set to Empty unless an export, import, or interface name
2188 --       pragma has explicitly specified an external name, in which case it
2189 --       references an N_String_Literal node for the specified external name.
2190 --       Note that if this field is Empty, and Is_Imported or Is_Exported is
2191 --       set, then the default interface name is the name of the entity, cased
2192 --       in a manner that is appropriate to the system in use. Note that
2193 --       Interface_Name is ignored if an address clause is present (since it
2194 --       is meaningless in this case).
2195 
2196 --    Interfaces (Elist25)
2197 --       Defined in record types and subtypes. List of abstract interfaces
2198 --       implemented by a tagged type that are not already implemented by the
2199 --       ancestors (Ada 2005: AI-251).
2200 
2201 --    Invariant_Procedure (synthesized)
2202 --       Defined in types and subtypes. Set for private types and their full
2203 --       views if one or more [class-wide] invariants apply to the type, or
2204 --       when the type inherits class-wide invariants from a parent type or
2205 --       an interface, or when the type is an array and its component type is
2206 --       subject to an invariant, or when the type is record and contains a
2207 --       component subject to an invariant (property is recursive). Points to
2208 --       to the entity for a procedure which checks all these invariants. The
2209 --       invariant procedure takes a single argument of the given type, and
2210 --       returns if the invariant holds, or raises exception Assertion_Error
2211 --       with an appropriate message if it does not hold. This attribute is
2212 --       defined but always Empty for private subtypes.
2213 
2214 --       Note: the reason this is marked as a synthesized attribute is that the
2215 --       way this is stored is as an element of the Subprograms_For_Type field.
2216 
2217 --    In_Use (Flag8)
2218 --       Defined in packages and types. Set when analyzing a use clause for
2219 --       the corresponding entity. Reset at end of corresponding declarative
2220 --       part. The flag on a type is also used to determine the visibility of
2221 --       the primitive operators of the type.
2222 
2223 --    Is_Abstract_Subprogram (Flag19)
2224 --       Defined in all subprograms and entries. Set for abstract subprograms.
2225 --       Always False for enumeration literals and entries. See also
2226 --       Requires_Overriding.
2227 
2228 --    Is_Abstract_Type (Flag146)
2229 --       Defined in all types. Set for abstract types.
2230 
2231 --    Is_Access_Constant (Flag69)
2232 --       Defined in access types and subtypes. Indicates that the keyword
2233 --       constant was present in the access type definition.
2234 
2235 --    Is_Access_Protected_Subprogram_Type (synthesized)
2236 --       Applies to all types, true for named and anonymous access to
2237 --       protected subprograms.
2238 
2239 --    Is_Access_Type (synthesized)
2240 --       Applies to all entities, true for access types and subtypes
2241 
2242 --    Is_Actual_Subtype (Flag293)
2243 --       Defined on all types, true for the generated constrained subtypes
2244 --       that are built for unconstrained composite actuals.
2245 
2246 --    Is_Ada_2005_Only (Flag185)
2247 --       Defined in all entities, true if a valid pragma Ada_05 or Ada_2005
2248 --       applies to the entity which specifically names the entity, indicating
2249 --       that the entity is Ada 2005 only. Note that this flag is not set if
2250 --       the entity is part of a unit compiled with the normal no-argument form
2251 --       of pragma Ada_05 or Ada_2005.
2252 
2253 --    Is_Ada_2012_Only (Flag199)
2254 --       Defined in all entities, true if a valid pragma Ada_12 or Ada_2012
2255 --       applies to the entity which specifically names the entity, indicating
2256 --       that the entity is Ada 2012 only. Note that this flag is not set if
2257 --       the entity is part of a unit compiled with the normal no-argument form
2258 --       of pragma Ada_12 or Ada_2012.
2259 
2260 --    Is_Aliased (Flag15)
2261 --       Defined in all entities. Set for objects and types whose declarations
2262 --       carry the keyword aliased, and on record components that have the
2263 --       keyword. For Ada 2012, also applies to formal parameters.
2264 
2265 --    Is_Array_Type (synthesized)
2266 --       Applies to all entities, true for array types and subtypes
2267 
2268 --    Is_Asynchronous (Flag81)
2269 --       Defined in all type entities and in procedure entities. Set
2270 --       if a pragma Asynchronous applies to the entity.
2271 
2272 --    Is_Atomic (Flag85)
2273 --       Defined in all type entities, and also in constants, components, and
2274 --       variables. Set if a pragma Atomic or Shared applies to the entity.
2275 --       In the case of private and incomplete types, this flag is set in
2276 --       both the partial view and the full view.
2277 
2278 --    Is_Atomic_Or_VFA (synth)
2279 --       Defined in all type entities, and also in constants, components and
2280 --       variables. Set if a pragma Atomic or Shared or Volatile_Full_Access
2281 --       applies to the entity. For many purposes VFA objects should be treated
2282 --       the same as Atomic objects, and this predicate is intended for that
2283 --       usage. In the case of private and incomplete types, the predicate
2284 --       applies to both the partial view and the full view.
2285 
2286 --    Is_Base_Type (synthesized)
2287 --       Applies to type and subtype entities. True if entity is a base type.
2288 
2289 --    Is_Bit_Packed_Array (Flag122) [implementation base type only]
2290 --       Defined in all entities. This flag is set for a packed array type that
2291 --       is bit-packed (i.e. the component size is known by the front end and
2292 --       is in the range 1-7, 9-15, 17-31, or 33-63). Is_Packed is always set
2293 --       if Is_Bit_Packed_Array is set, but it is possible for Is_Packed to be
2294 --       set without Is_Bit_Packed_Array if the component size is not known by
2295 --       the front-end or for the case of an array having one or more index
2296 --       types that are enumeration types with non-standard representation.
2297 
2298 --    Is_Boolean_Type (synthesized)
2299 --       Applies to all entities, true for boolean types and subtypes,
2300 --       i.e. Standard.Boolean and all types ultimately derived from it.
2301 
2302 --    Is_Called (Flag102)
2303 --       Defined in subprograms. Returns true if the subprogram is called
2304 --       in the unit being compiled or in a unit in the context. Used for
2305 --       inlining.
2306 
2307 --    Is_Character_Type (Flag63)
2308 --       Defined in all entities. Set for character types and subtypes,
2309 --       i.e. enumeration types that have at least one character literal.
2310 
2311 --    Is_Checked_Ghost_Entity (Flag277)
2312 --       Applies to all entities. Set for abstract states, [generic] packages,
2313 --       [generic] subprograms, components, discriminants, formal parameters,
2314 --       objects, package bodies, subprogram bodies, and [sub]types subject to
2315 --       pragma Ghost or inherit "ghostness" from an enclosing construct, and
2316 --       subject to Assertion_Policy Ghost => Check.
2317 
2318 --    Is_Child_Unit (Flag73)
2319 --       Defined in all entities. Set only for defining entities of program
2320 --       units that are child units (but False for subunits).
2321 
2322 --    Is_Class_Wide_Equivalent_Type (Flag35)
2323 --       Defined in record types and subtypes. Set to True, if the type acts
2324 --       as a class-wide equivalent type, i.e. the Equivalent_Type field of
2325 --       some class-wide subtype entity references this record type.
2326 
2327 --    Is_Class_Wide_Type (synthesized)
2328 --       Applies to all entities, true for class wide types and subtypes
2329 
2330 --    Is_Compilation_Unit (Flag149)
2331 --       Defined in all entities. Set if the entity is a package or subprogram
2332 --       entity for a compilation unit other than a subunit (since we treat
2333 --       subunits as part of the same compilation operation as the ultimate
2334 --       parent, we do not consider them to be separate units for this flag).
2335 
2336 --    Is_Completely_Hidden (Flag103)
2337 --       Defined on discriminants. Only set on girder discriminants of
2338 --       untagged types. When set, the entity is a girder discriminant of a
2339 --       derived untagged type which is not directly visible in the derived
2340 --       type because the derived type or one of its ancestors have renamed the
2341 --       discriminants in the root type. Note: there are girder discriminants
2342 --       which are not Completely_Hidden (e.g. discriminants of a root type).
2343 
2344 --    Is_Composite_Type (synthesized)
2345 --       Applies to all entities, true for all composite types and subtypes.
2346 --       Either Is_Composite_Type or Is_Elementary_Type (but not both) is true
2347 --       of any type.
2348 
2349 --    Is_Concurrent_Record_Type (Flag20)
2350 --       Defined in record types and subtypes. Set if the type was created
2351 --       by the expander to represent a task or protected type. For every
2352 --       concurrent type, such as record type is constructed, and task and
2353 --       protected objects are instances of this record type at runtime
2354 --       (The backend will replace declarations of the concurrent type using
2355 --       the declarations of the corresponding record type). See Exp_Ch9 for
2356 --       further details.
2357 
2358 --    Is_Concurrent_Type (synthesized)
2359 --       Applies to all entities, true for task types and subtypes and for
2360 --       protected types and subtypes.
2361 
2362 --    Is_Constant_Object (synthesized)
2363 --       Applies to all entities, true for E_Constant, E_Loop_Parameter, and
2364 --       E_In_Parameter entities.
2365 
2366 --    Is_Constrained (Flag12)
2367 --       Defined in types or subtypes which may have index, discriminant
2368 --       or range constraint (i.e. array types and subtypes, record types
2369 --       and subtypes, string types and subtypes, and all numeric types).
2370 --       Set if the type or subtype is constrained.
2371 
2372 --    Is_Constr_Subt_For_U_Nominal (Flag80)
2373 --       Defined in all types and subtypes. Set only for the constructed
2374 --       subtype of an object whose nominal subtype is unconstrained. Note
2375 --       that the constructed subtype itself will be constrained.
2376 
2377 --    Is_Constr_Subt_For_UN_Aliased (Flag141)
2378 --       Defined in all types and subtypes. This flag can be set only if
2379 --       Is_Constr_Subt_For_U_Nominal is also set. It indicates that in
2380 --       addition the object concerned is aliased. This flag is used by
2381 --       the backend to determine whether a template must be constructed.
2382 
2383 --    Is_Constructor (Flag76)
2384 --       Defined in function and procedure entities. Set if a pragma
2385 --       CPP_Constructor applies to the subprogram.
2386 
2387 --    Is_Controlled (Flag42) [base type only]
2388 --       Defined in all type entities. Indicates that the type is controlled,
2389 --       i.e. is either a descendant of Ada.Finalization.Controlled or of
2390 --       Ada.Finalization.Limited_Controlled.
2391 
2392 --    Is_Controlled_Active (synth) [base type only]
2393 --       Defined in all type entities. Set if Is_Controlled is set for the
2394 --       type, and Disable_Controlled is not set.
2395 
2396 --    Is_Controlling_Formal (Flag97)
2397 --       Defined in all Formal_Kind entities. Marks the controlling parameters
2398 --       of dispatching operations.
2399 
2400 --    Is_CPP_Class (Flag74)
2401 --       Defined in all type entities, set only for tagged types to which a
2402 --       valid pragma Import (CPP, ...) or pragma CPP_Class has been applied.
2403 
2404 --    Is_Decimal_Fixed_Point_Type (synthesized)
2405 --       Applies to all type entities, true for decimal fixed point
2406 --       types and subtypes.
2407 
2408 --    Is_Default_Init_Cond_Procedure (Flag132)
2409 --       Defined in functions and procedures. Set for a generated procedure
2410 --       which verifies the assumption of pragma Default_Initial_Condition.
2411 
2412 --    Is_Descendant_Of_Address (Flag223)
2413 --       Defined in all entities. True if the entity is type System.Address,
2414 --       or (recursively) a subtype or derived type of System.Address.
2415 
2416 --    Is_Discrete_Or_Fixed_Point_Type (synthesized)
2417 --       Applies to all entities, true for all discrete types and subtypes
2418 --       and all fixed-point types and subtypes.
2419 
2420 --    Is_Discrete_Type (synthesized)
2421 --       Applies to all entities, true for all discrete types and subtypes
2422 
2423 --    Is_Discrim_SO_Function (Flag176)
2424 --       Defined in all entities. Set only in E_Function entities that Layout
2425 --       creates to compute discriminant-dependent dynamic size/offset values.
2426 
2427 --    Is_Discriminant_Check_Function (Flag264)
2428 --       Defined in all entities. Set only in E_Function entities for functions
2429 --       created to do discriminant checks.
2430 
2431 --    Is_Discriminal (synthesized)
2432 --       Applies to all entities, true for renamings of discriminants. Such
2433 --       entities appear as constants or IN parameters.
2434 
2435 --    Is_Dispatch_Table_Entity (Flag234)
2436 --       Applies to all entities. Set to indicate to the backend that this
2437 --       entity is associated with a dispatch table.
2438 
2439 --    Is_Dispatching_Operation (Flag6)
2440 --       Defined in all entities. Set for procedures, functions, generic
2441 --       procedures, and generic functions if the corresponding operation
2442 --       is dispatching.
2443 
2444 --    Is_Dynamic_Scope (synthesized)
2445 --       Applies to all Entities. Returns True if the entity is a dynamic
2446 --       scope (i.e. a block, subprogram, task_type, entry
2447 --       or extended return statement).
2448 
2449 --    Is_Elementary_Type (synthesized)
2450 --       Applies to all entities, true for all elementary types and
2451 --       subtypes. Either Is_Composite_Type or Is_Elementary_Type (but
2452 --       not both) is true of any type.
2453 
2454 --    Is_Eliminated (Flag124)
2455 --       Defined in type entities, subprogram entities, and object entities.
2456 --       Indicates that the corresponding entity has been eliminated by use
2457 --       of pragma Eliminate. Also used to mark subprogram entities whose
2458 --       declaration and body are within unreachable code that is removed.
2459 
2460 --    Is_Entry (synthesized)
2461 --       Applies to all entities, True only for entry and entry family
2462 --       entities and False for all other entity kinds.
2463 
2464 --    Is_Entry_Formal (Flag52)
2465 --       Defined in all entities. Set only for entry formals (which can only
2466 --       be in, in-out or out parameters). This flag is used to speed up the
2467 --       test for the need to replace references in Exp_Ch2.
2468 
2469 --    Is_Enumeration_Type (synthesized)
2470 --       Defined in all entities, true for enumeration types and subtypes
2471 
2472 --    Is_Exception_Handler (Flag286)
2473 --       Defined in blocks. Set if the block serves only as a scope of an
2474 --       exception handler with a choice parameter. Such a block does not
2475 --       physically appear in the tree.
2476 
2477 --    Is_Exported (Flag99)
2478 --       Defined in all entities. Set if the entity is exported. For now we
2479 --       only allow the export of constants, exceptions, functions, procedures
2480 --       and variables, but that may well change later on. Exceptions can only
2481 --       be exported in the Java VM implementation of GNAT, which is retired.
2482 
2483 --    Is_External_State (synthesized)
2484 --       Applies to all entities, true for abstract states that are subject to
2485 --       option External.
2486 
2487 --    Is_Finalizer (synthesized)
2488 --       Applies to all entities, true for procedures containing finalization
2489 --       code to process local or library level objects.
2490 
2491 --    Is_First_Subtype (Flag70)
2492 --       Defined in all entities. True for first subtypes (RM 3.2.1(6)),
2493 --       i.e. the entity in the type declaration that introduced the type.
2494 --       This may be the base type itself (e.g. for record declarations and
2495 --       enumeration type declarations), or it may be the first subtype of
2496 --       an anonymous base type (e.g. for integer type declarations or
2497 --       constrained array declarations).
2498 
2499 --    Is_Fixed_Point_Type (synthesized)
2500 --       Applies to all entities, true for decimal and ordinary fixed
2501 --       point types and subtypes.
2502 
2503 --    Is_Floating_Point_Type (synthesized)
2504 --       Applies to all entities, true for float types and subtypes
2505 
2506 --    Is_Formal (synthesized)
2507 --       Applies to all entities, true for IN, IN OUT and OUT parameters
2508 
2509 --    Is_Formal_Object (synthesized)
2510 --       Applies to all entities, true for generic IN and IN OUT parameters
2511 
2512 --    Is_Formal_Subprogram (Flag111)
2513 --       Defined in all entities. Set for generic formal subprograms.
2514 
2515 --    Is_For_Access_Subtype (Flag118)
2516 --       Defined in E_Private_Subtype and E_Record_Subtype entities. Means the
2517 --       sole purpose of the type is to be designated by an Access_Subtype and
2518 --       hence should not be expanded into components because the type may not
2519 --       have been found or frozen yet.
2520 
2521 --    Is_Frozen (Flag4)
2522 --       Defined in all type and subtype entities. Set if type or subtype has
2523 --       been frozen.
2524 
2525 --    Is_Generic_Actual_Subprogram (Flag274)
2526 --       Defined on functions and procedures. Set on the entity of the renaming
2527 --       declaration created within an instance for an actual subprogram.
2528 --       Used to generate constraint checks on calls to these subprograms, even
2529 --       within an instance of a predefined run-time unit, in which checks
2530 --       are otherwise suppressed.
2531 --
2532 --       The flag is also set on the entity of the expression function created
2533 --       within an instance, for a function that has external axiomatization,
2534 --       for use in GNATprove mode.
2535 
2536 --    Is_Generic_Actual_Type (Flag94)
2537 --       Defined in all type and subtype entities. Set in the subtype
2538 --       declaration that renames the generic formal as a subtype of the
2539 --       actual. Guarantees that the subtype is not static within the instance.
2540 --       Also used during analysis of an instance, to simplify resolution of
2541 --       accidental overloading that occurs when different formal types get the
2542 --       same actual.
2543 
2544 --    Is_Generic_Instance (Flag130)
2545 --       Defined in all entities. Set to indicate that the entity is an
2546 --       instance of a generic unit, or a formal package (which is an instance
2547 --       of the template).
2548 
2549 --    Is_Generic_Subprogram (synthesized)
2550 --       Applies to all entities. Yields True for a generic subprogram
2551 --       (generic function, generic subprogram), False for all other entities.
2552 
2553 --    Is_Generic_Type (Flag13)
2554 --       Defined in all entities. Set for types which are generic formal types.
2555 --       Such types have an Ekind that corresponds to their classification, so
2556 --       the Ekind cannot be used to identify generic formal types.
2557 
2558 --    Is_Generic_Unit (synthesized)
2559 --       Applies to all entities. Yields True for a generic unit (generic
2560 --       package, generic function, generic procedure), and False for all
2561 --       other entities.
2562 
2563 --    Is_Ghost_Entity (synthesized)
2564 --       Applies to all entities. Yields True for abstract states, [generic]
2565 --       packages, [generic] subprograms, components, discriminants, formal
2566 --       parameters, objects, package bodies, subprogram bodies, and [sub]types
2567 --       subject to pragma Ghost or those that inherit the Ghost propery from
2568 --       an enclosing construct.
2569 
2570 --    Is_Hidden (Flag57)
2571 --       Defined in all entities. Set for all entities declared in the
2572 --       private part or body of a package. Also marks generic formals of a
2573 --       formal package declared without a box. For library level entities,
2574 --       this flag is set if the entity is not publicly visible. This flag
2575 --       is reset when compiling the body of the package where the entity
2576 --       is declared, when compiling the private part or body of a public
2577 --       child unit, and when compiling a private child unit (see Install_
2578 --       Private_Declaration in sem_ch7).
2579 
2580 --    Is_Hidden_Non_Overridden_Subpgm (Flag2)
2581 --       Defined in all entities. Set for implicitly declared subprograms
2582 --       that require overriding or are null procedures, and are hidden by
2583 --       a non-fully conformant homograph with the same characteristics
2584 --       (Ada RM 8.3 12.3/2).
2585 
2586 --    Is_Hidden_Open_Scope (Flag171)
2587 --       Defined in all entities. Set for a scope that contains the
2588 --       instantiation of a child unit, and whose entities are not visible
2589 --       during analysis of the instance.
2590 
2591 --    Is_Ignored_Ghost_Entity (Flag278)
2592 --       Applies to all entities. Set for abstract states, [generic] packages,
2593 --       [generic] subprograms, components, discriminants, formal parameters,
2594 --       objects, package bodies, subprogram bodies, and [sub]types subject to
2595 --       pragma Ghost or inherit "ghostness" from an enclosing construct, and
2596 --       subject to Assertion_Policy Ghost => Ignore.
2597 
2598 --    Is_Immediately_Visible (Flag7)
2599 --       Defined in all entities. Set if entity is immediately visible, i.e.
2600 --       is defined in some currently open scope (RM 8.3(4)).
2601 
2602 --    Is_Implementation_Defined (Flag254)
2603 --       Defined in all entities. Set if a pragma Implementation_Defined is
2604 --       applied to the pragma. Used to mark all implementation defined
2605 --       identifiers in standard library packages, and to implement the
2606 --       restriction No_Implementation_Identifiers.
2607 
2608 --    Is_Imported (Flag24)
2609 --       Defined in all entities. Set if the entity is imported. For now we
2610 --       only allow the import of exceptions, functions, procedures, packages.
2611 --       and variables. Exceptions, packages and types can only be imported in
2612 --       the Java VM implementation, which is retired.
2613 
2614 --    Is_Incomplete_Or_Private_Type (synthesized)
2615 --       Applies to all entities, true for private and incomplete types
2616 
2617 --    Is_Incomplete_Type (synthesized)
2618 --       Applies to all entities, true for incomplete types and subtypes
2619 
2620 --    Is_Independent (Flag268)
2621 --       Defined in all type entities, and also in constants, components and
2622 --       variables. Set if a valid pragma or aspect Independent applies to the
2623 --       entity, or if a valid pragma or aspect Independent_Components applies
2624 --       to the enclosing record type for a component. Also set if a pragma
2625 --       Shared or pragma Atomic applies to the entity. In the case of private
2626 --       and incomplete types, this flag is set in both the partial view and
2627 --       the full view.
2628 
2629 --    Is_Inlined (Flag11)
2630 --       Defined in all entities. Set for functions and procedures which are
2631 --       to be inlined. For subprograms created during expansion, this flag
2632 --       may be set directly by the expander to request inlining. Also set
2633 --       for packages that contain inlined subprograms, whose bodies must be
2634 --       be compiled. Is_Inlined is also set on generic subprograms and is
2635 --       inherited by their instances. It is also set on the body entities
2636 --       of inlined subprograms. See also Has_Pragma_Inline.
2637 
2638 --    Is_Inlined_Always (Flag1)
2639 --       Defined in subprograms. Set for functions and procedures which are
2640 --       always inlined in GNATprove mode. GNATprove uses this flag to know
2641 --       when a body does not need to be analyzed. The value of this flag is
2642 --       only meaningful if Body_To_Inline is not Empty for the subprogram.
2643 
2644 --    Is_Instantiated (Flag126)
2645 --       Defined in generic packages and generic subprograms. Set if the unit
2646 --       is instantiated from somewhere in the extended main source unit. This
2647 --       flag is used to control warnings about the unit being uninstantiated.
2648 --       Also set in a package that is used as an actual for a generic package
2649 --       formal in an instantiation. Also set on a parent instance, in the
2650 --       instantiation of a child, which is implicitly declared in the parent.
2651 
2652 --    Is_Integer_Type (synthesized)
2653 --       Applies to all entities, true for integer types and subtypes
2654 
2655 --    Is_Interface (Flag186)
2656 --       Defined in record types and subtypes. Set to indicate that the current
2657 --       entity corresponds with an abstract interface. Because abstract
2658 --       interfaces are conceptually a special kind of abstract tagged types
2659 --       we represent them by means of tagged record types and subtypes
2660 --       marked with this attribute. This allows us to reuse most of the
2661 --       compiler support for abstract tagged types to implement interfaces
2662 --       (Ada 2005: AI-251).
2663 
2664 --    Is_Internal (Flag17)
2665 --       Defined in all entities. Set to indicate an entity created during
2666 --       semantic processing (e.g. an implicit type, or a temporary). The
2667 --       current uses of this flag are:
2668 --
2669 --         1) Internal entities (such as temporaries generated for the result
2670 --         of an inlined function call or dummy variables generated for the
2671 --         debugger). Set to indicate that they need not be initialized, even
2672 --         when scalars are initialized or normalized;
2673 --
2674 --         2) Predefined primitives of tagged types. Set to mark that they
2675 --         have specific properties: first they are primitives even if they
2676 --         are not defined in the type scope (the freezing point is not
2677 --         necessarily in the same scope), and second the predefined equality
2678 --         can be overridden by a user-defined equality, no body will be
2679 --         generated in this case.
2680 --
2681 --         3) Object declarations generated by the expander that are implicitly
2682 --         imported or exported so that they can be marked in Sprint output.
2683 --
2684 --         4) Internal entities in the list of primitives of tagged types that
2685 --         are used to handle secondary dispatch tables. These entities have
2686 --         also the attribute Interface_Alias.
2687 
2688 --    Is_Interrupt_Handler (Flag89)
2689 --       Defined in procedures. Set if a pragma Interrupt_Handler applies
2690 --       to the procedure. The procedure must be parameterless, and on all
2691 --       targets except AAMP it must be a protected procedure.
2692 
2693 --    Is_Intrinsic_Subprogram (Flag64)
2694 --       Defined in functions and procedures. It is set if a valid pragma
2695 --       Interface or Import is present for this subprogram specifying
2696 --       convention Intrinsic. Valid means that the name and profile of the
2697 --       subprogram match the requirements of one of the recognized intrinsic
2698 --       subprograms (see package Sem_Intr for details). Note: the value of
2699 --       Convention for such an entity will be set to Convention_Intrinsic,
2700 --       but it is the setting of Is_Intrinsic_Subprogram, NOT simply having
2701 --       convention set to intrinsic, which causes intrinsic code to be
2702 --       generated.
2703 
2704 --    Is_Invariant_Procedure (Flag257)
2705 --       Defined in functions and procedures. Set for a generated invariant
2706 --       procedure which verifies the invariants of both the partial and full
2707 --       views of a private type or private extension as well as any inherited
2708 --       class-wide invariants from parent types or interfaces.
2709 
2710 --    Is_Itype (Flag91)
2711 --       Defined in all entities. Set to indicate that a type is an Itype,
2712 --       which means that the declaration for the type does not appear
2713 --       explicitly in the tree. Instead the backend will elaborate the type
2714 --       when it is first used. Has_Delayed_Freeze can be set for Itypes, and
2715 --       the meaning is that the first use (the one which causes the type to be
2716 --       defined) will be the freeze node. Note that an important restriction
2717 --       on Itypes is that the first use of such a type (the one that causes it
2718 --       to be defined) must be in the same scope as the type.
2719 
2720 --    Is_Known_Non_Null (Flag37)
2721 --       Defined in all entities. Relevant (and can be set) only for
2722 --       objects of an access type. It is set if the object is currently
2723 --       known to have a non-null value (meaning that no access checks
2724 --       are needed). The indication can for example come from assignment
2725 --       of an access parameter or an allocator whose value is known non-null.
2726 --
2727 --       Note: this flag is set according to the sequential flow of the
2728 --       program, watching the current value of the variable. However, this
2729 --       processing can miss cases of changing the value of an aliased or
2730 --       constant object, so even if this flag is set, it should not be
2731 --       believed if the variable is aliased or volatile. It would be a
2732 --       little neater to avoid the flag being set in the first place in
2733 --       such cases, but that's trickier, and there is only one place that
2734 --       tests the value anyway.
2735 --
2736 --       The flag is dynamically set and reset as semantic analysis and
2737 --       expansion proceeds. Its value is meaningless once the tree is
2738 --       fully constructed, since it simply indicates the last state.
2739 --       Thus this flag has no meaning to the backend.
2740 
2741 --    Is_Known_Null (Flag204)
2742 --       Defined in all entities. Relevant (and can be set ) only for
2743 --       objects of an access type. It is set if the object is currently known
2744 --       to have a null value (meaning that a dereference will surely raise
2745 --       constraint error exception). The indication can come from an
2746 --       assignment or object declaration.
2747 --
2748 --       The comments above about sequential flow and aliased and volatile for
2749 --       the Is_Known_Non_Null flag apply equally to the Is_Known_Null flag.
2750 
2751 --    Is_Known_Valid (Flag170)
2752 --       Defined in all entities. Relevant for types (and subtype) and
2753 --       for objects (and enumeration literals) of a discrete type.
2754 --
2755 --       The purpose of this flag is to implement the requirement stated
2756 --       in (RM 13.9.1(9-11)) which require that the use of possibly invalid
2757 --       values may not cause programs to become erroneous. See the function
2758 --       Checks.Expr_Known_Valid for further details. Note that the setting
2759 --       is conservative, in the sense that if the flag is set, it must be
2760 --       right. If the flag is not set, nothing is known about the validity.
2761 --
2762 --       For enumeration literals, the flag is always set, since clearly
2763 --       an enumeration literal represents a valid value. Range checks
2764 --       where necessary will ensure that this valid value is appropriate.
2765 --
2766 --       For objects, the flag indicates the state of knowledge about the
2767 --       current value of the object. This may be modified during expansion,
2768 --       and thus the final value is not relevant to the backend.
2769 --
2770 --       For types and subtypes, the flag is set if all possible bit patterns
2771 --       of length Object_Size (i.e. Esize of the type) represent valid values
2772 --       of the type. In general for such tytpes, all values are valid, the
2773 --       only exception being the case where an object of the type has an
2774 --       explicit size that is greater than Object_Size.
2775 --
2776 --       For non-discrete objects, the setting of the Is_Known_Valid flag is
2777 --       not defined, and is not relevant, since the considerations of the
2778 --       requirement in (RM 13.9.1(9-11)) do not apply.
2779 --
2780 --       The flag is dynamically set and reset as semantic analysis and
2781 --       expansion proceeds. Its value is meaningless once the tree is
2782 --       fully constructed, since it simply indicates the last state.
2783 --       Thus this flag has no meaning to the backend.
2784 
2785 --    Is_Limited_Composite (Flag106)
2786 --       Defined in all entities. Set for composite types that have a limited
2787 --       component. Used to enforce the rule that operations on the composite
2788 --       type that depend on the full view of the component do not become
2789 --       visible until the immediate scope of the composite type itself
2790 --       (RM 7.3.1 (5)).
2791 
2792 --    Is_Limited_Interface (Flag197)
2793 --       Defined in record types and subtypes. True for interface types, if
2794 --       interface is declared limited, task, protected, or synchronized, or
2795 --       is derived from a limited interface.
2796 
2797 --    Is_Limited_Record (Flag25)
2798 --       Defined in all entities. Set to true for record (sub)types if the
2799 --       record is declared to be limited. Note that this flag is not set
2800 --       simply because some components of the record are limited.
2801 
2802 --    Is_Local_Anonymous_Access (Flag194)
2803 --       Defined in access types. Set for an anonymous access type to indicate
2804 --       that the type is created for a record component with an access
2805 --       definition, an array component, or (pre-Ada 2012) a standalone object.
2806 --       Such anonymous types have an accessibility level equal to that of the
2807 --       declaration in which they appear, unlike the anonymous access types
2808 --       that are created for access parameters, access discriminants, and
2809 --       (as of Ada 2012) stand-alone objects.
2810 
2811 --    Is_Machine_Code_Subprogram (Flag137)
2812 --       Defined in subprogram entities. Set to indicate that the subprogram
2813 --       is a machine code subprogram (i.e. its body includes at least one
2814 --       code statement). Also indicates that all necessary semantic checks
2815 --       as required by RM 13.8(3) have been performed.
2816 
2817 --    Is_Modular_Integer_Type (synthesized)
2818 --       Applies to all entities. True if entity is a modular integer type
2819 
2820 --    Is_Non_Static_Subtype (Flag109)
2821 --       Defined in all type and subtype entities. It is set in some (but not
2822 --       all) cases in which a subtype is known to be non-static. Before this
2823 --       flag was added, the computation of whether a subtype was static was
2824 --       entirely synthesized, by looking at the bounds, and the immediate
2825 --       subtype parent. However, this method does not work for some Itypes
2826 --       that have no parent set (and the only way to find the immediate
2827 --       subtype parent is to go through the tree). For now, this flag is set
2828 --       conservatively, i.e. if it is set then for sure the subtype is non-
2829 --       static, but if it is not set, then the type may or may not be static.
2830 --       Thus the test for a static subtype is that this flag is clear AND that
2831 --       the bounds are static AND that the parent subtype (if available to be
2832 --       tested) is static. Eventually we should make sure this flag is always
2833 --       set right, at which point, these comments can be removed, and the
2834 --       tests for static subtypes greatly simplified.
2835 
2836 --    Is_Null_Init_Proc (Flag178)
2837 --       Defined in procedure entities. Set for generated init proc procedures
2838 --       (used to initialize composite types), if the code for the procedure
2839 --       is null (i.e. is a return and nothing else). Such null initialization
2840 --       procedures are generated in case some client is compiled using the
2841 --       Initialize_Scalars pragma, generating a call to this null procedure,
2842 --       but there is no need to call such procedures within a compilation
2843 --       unit, and this flag is used to suppress such calls.
2844 
2845 --    Is_Null_State (synthesized)
2846 --       Applies to all entities, true for an abstract state declared with
2847 --       keyword null.
2848 
2849 --    Is_Numeric_Type (synthesized)
2850 --       Applies to all entities, true for all numeric types and subtypes
2851 --       (integer, fixed, float).
2852 
2853 --    Is_Object (synthesized)
2854 --       Applies to all entities, true for entities representing objects,
2855 --       including generic formal parameters.
2856 
2857 --    Is_Obsolescent (Flag153)
2858 --       Defined in all entities. Set for any entity to which a valid pragma
2859 --       or aspect Obsolescent applies.
2860 
2861 --    Is_Only_Out_Parameter (Flag226)
2862 --       Defined in formal parameter entities. Set if this parameter is the
2863 --       only OUT parameter for this formal part. If there is more than one
2864 --       out parameter, or if there is some other IN OUT parameter then this
2865 --       flag is not set in any of them. Used in generation of warnings.
2866 
2867 --    Is_Ordinary_Fixed_Point_Type (synthesized)
2868 --       Applies to all entities, true for ordinary fixed point types and
2869 --       subtypes.
2870 
2871 --    Is_Package_Body_Entity (Flag160)
2872 --       Defined in all entities. Set for entities defined at the top level
2873 --       of a package body. Used to control externally generated names.
2874 
2875 --    Is_Package_Or_Generic_Package (synthesized)
2876 --       Applies to all entities. True for packages and generic packages.
2877 --       False for all other entities.
2878 
2879 --    Is_Packed (Flag51) [implementation base type only]
2880 --       Defined in all type entities. This flag is set only for record and
2881 --       array types which have a packed representation. There are four cases
2882 --       which cause packing:
2883 --
2884 --         1. Explicit use of pragma Pack to pack a record.
2885 --         2. Explicit use of pragma Pack to pack an array.
2886 --         3. Setting Component_Size of an array to a packable value.
2887 --         4. Indexing an array with a non-standard enumeration type.
2888 --
2889 --       For records, Is_Packed is always set if Has_Pragma_Pack is set, and
2890 --       can also be set on its own in a derived type which inherited its
2891 --       packed status.
2892 --
2893 --       For arrays, Is_Packed is set if either Has_Pragma_Pack is set and the
2894 --       component size is either not known at compile time or known but not
2895 --       8/16/32/64 bits, or a Component_Size clause exists and the specified
2896 --       value is smaller than 64 bits but not 8/16/32, or if the array has one
2897 --       or more index types that are enumeration types with a non-standard
2898 --       representation (in GNAT, we store such arrays compactly, using the Pos
2899 --       of the enumeration type value). As for the case of records, Is_Packed
2900 --       can be set on its own for a derived type.
2901 
2902 --       Before an array type is frozen, Is_Packed will always be set if
2903 --       Has_Pragma_Pack is set. Before the freeze point, it is not possible
2904 --       to know the component size, since the component type is not frozen
2905 --       until the array type is frozen. Thus Is_Packed for an array type
2906 --       before it is frozen means that packed is required. Then if it turns
2907 --       out that the component size doesn't require packing, the Is_Packed
2908 --       flag gets turned off.
2909 
2910 --       In the bit-packed array case (i.e. component size is known at compile
2911 --       time and is 1-7, 9-15, 17-31 or 33-63), Is_Bit_Packed_Array will be
2912 --       set once the array type is frozen.
2913 --
2914 --    Is_Packed_Array (synth)
2915 --       Applies to all entities, true if entity is for a packed array.
2916 
2917 --    Is_Packed_Array_Impl_Type (Flag138)
2918 --       Defined in all entities. This flag is set on the entity for the type
2919 --       used to implement a packed array (either a modular type or a subtype
2920 --       of Packed_Bytes{1,2,4} in the bit-packed array case, a regular array
2921 --       in the non-standard enumeration index case). It is set if and only
2922 --       if the type appears in the Packed_Array_Impl_Type field of some other
2923 --       entity. It is used by the back end to activate the special processing
2924 --       for such types (unchecked conversions that would not otherwise be
2925 --       allowed are allowed for such types). If Is_Packed_Array_Impl_Type is
2926 --       set in an entity, then the Original_Array_Type field of this entity
2927 --       points to the array type for which this is the Packed_Array_Impl_Type.
2928 
2929 --    Is_Param_Block_Component_Type (Flag215) [base type only]
2930 --       Defined in access types. Set to indicate that a type is the type of a
2931 --       component of the parameter block record type generated by the compiler
2932 --       for an entry or a select statement. Read by CodePeer.
2933 
2934 --    Is_Partial_Invariant_Procedure (Flag292)
2935 --       Defined in functions and procedures. Set for a generated invariant
2936 --       procedure which verifies the invariants of the partial view of a
2937 --       private type or private extension.
2938 
2939 --    Is_Potentially_Use_Visible (Flag9)
2940 --       Defined in all entities. Set if entity is potentially use visible,
2941 --       i.e. it is defined in a package that appears in a currently active
2942 --       use clause (RM 8.4(8)). Note that potentially use visible entities
2943 --       are not necessarily use visible (RM 8.4(9-11)).
2944 
2945 --    Is_Predicate_Function (Flag255)
2946 --       Present in functions and procedures. Set for generated predicate
2947 --       functions.
2948 
2949 --    Is_Predicate_Function_M (Flag256)
2950 --       Present in functions and procedures. Set for special version of
2951 --       predicate function generated for use in membership tests, where
2952 --       raise expressions are transformed to return False.
2953 
2954 --    Is_Preelaborated (Flag59)
2955 --       Defined in all entities, set in E_Package and E_Generic_Package
2956 --       entities to which a pragma Preelaborate is applied, and also in
2957 --       all entities within such packages. Note that the fact that this
2958 --       flag is set does not necesarily mean that no elaboration code is
2959 --       generated for the package.
2960 
2961 --    Is_Primitive (Flag218)
2962 --       Defined in overloadable entities and in generic subprograms. Set to
2963 --       indicate that this is a primitive operation of some type, which may
2964 --       be a tagged type or an untagged type. Used to verify overriding
2965 --       indicators in bodies.
2966 
2967 --    Is_Primitive_Wrapper (Flag195)
2968 --       Defined in functions and procedures created by the expander to serve
2969 --       as an indirection mechanism to overriding primitives of concurrent
2970 --       types, entries and protected procedures.
2971 
2972 --    Is_Prival (synthesized)
2973 --       Applies to all entities, true for renamings of private protected
2974 --       components. Such entities appear as constants or variables.
2975 
2976 --    Is_Private_Composite (Flag107)
2977 --       Defined in composite types that have a private component. Used to
2978 --       enforce the rule that operations on the composite type that depend
2979 --       on the full view of the component, do not become visible until the
2980 --       immediate scope of the composite type itself (7.3.1 (5)). Both this
2981 --       flag and Is_Limited_Composite are needed.
2982 
2983 --    Is_Private_Descendant (Flag53)
2984 --       Defined in entities that can represent library units (packages,
2985 --       functions, procedures). Set if the library unit is itself a private
2986 --       child unit, or if it is the descendant of a private child unit.
2987 
2988 --    Is_Private_Primitive (Flag245)
2989 --       Defined in subprograms. Set if the operation is a primitive of a
2990 --       tagged type (procedure or function dispatching on result) whose
2991 --       full view has not been seen. Used in particular for primitive
2992 --       subprograms of a synchronized type declared between the two views
2993 --       of the type, so that the wrapper built for such a subprogram can
2994 --       be given the proper signature.
2995 
2996 --    Is_Private_Type (synthesized)
2997 --       Applies to all entities, true for private types and subtypes,
2998 --       as well as for record with private types as subtypes.
2999 
3000 --    Is_Processed_Transient (Flag252)
3001 --       Defined in variables, loop parameters, and constants, including the
3002 --       loop parameters of generalized iterators. Set when a transient object
3003 --       needs to be finalized and has already been processed by the transient
3004 --       scope machinery. This flag signals the general finalization mechanism
3005 --       to ignore the transient object.
3006 
3007 --    Is_Protected_Component (synthesized)
3008 --       Applicable to all entities, true if the entity denotes a private
3009 --       component of a protected type.
3010 
3011 --    Is_Protected_Interface (synthesized)
3012 --       Defined in types that are interfaces. True if interface is declared
3013 --       protected, or is derived from protected interfaces.
3014 
3015 --    Is_Protected_Record_Type (synthesized)
3016 --       Applies to all entities, true if Is_Concurrent_Record_Type is true and
3017 --       Corresponding_Concurrent_Type is a protected type.
3018 
3019 --    Is_Protected_Type (synthesized)
3020 --       Applies to all entities, true for protected types and subtypes
3021 
3022 --    Is_Public (Flag10)
3023 --       Defined in all entities. Set to indicate that an entity defined in
3024 --       one compilation unit can be referenced from other compilation units.
3025 --       If this reference causes a reference in the generated code, for
3026 --       example in the case of a variable name, then the backend will generate
3027 --       an appropriate external name for use by the linker.
3028 
3029 --    Is_Pure (Flag44)
3030 --       Defined in all entities. Set in all entities of a unit to which a
3031 --       pragma Pure is applied except for non-intrinsic imported subprograms,
3032 --       and also set for the entity of the unit itself. In addition, this
3033 --       flag may be set for any other functions or procedures that are known
3034 --       to be side effect free, so in the case of subprograms, the Is_Pure
3035 --       flag may be used by the optimizer to imply that it can assume freedom
3036 --       from side effects (other than those resulting from assignment to out
3037 --       parameters, or to objects designated by access parameters).
3038 
3039 --    Is_Pure_Unit_Access_Type (Flag189)
3040 --       Defined in access type and subtype entities. Set if the type or
3041 --       subtype appears in a pure unit. Used to give an error message at
3042 --       freeze time if the access type has a storage pool.
3043 
3044 --    Is_RACW_Stub_Type (Flag244)
3045 --       Defined in all types, true for the stub types generated for remote
3046 --       access-to-class-wide types.
3047 
3048 --    Is_Raised (Flag224)
3049 --       Defined in exception entities. Set if the entity is referenced by a
3050 --       a raise statement.
3051 
3052 --    Is_Real_Type (synthesized)
3053 --       Applies to all entities, true for real types and subtypes
3054 
3055 --    Is_Record_Type (synthesized)
3056 --       Applies to all entities, true for record types and subtypes,
3057 --       includes class-wide types and subtypes (which are also records).
3058 
3059 --    Is_Remote_Call_Interface (Flag62)
3060 --       Defined in all entities. Set in E_Package and E_Generic_Package
3061 --       entities to which a pragma Remote_Call_Interface is applied, and
3062 --       also on entities declared in the visible part of such a package.
3063 
3064 --    Is_Remote_Types (Flag61)
3065 --       Defined in all entities. Set in E_Package and E_Generic_Package
3066 --       entities to which a pragma Remote_Types is applied, and also on
3067 --       entities declared in the visible part of the spec of such a package.
3068 --       Also set for types which are generic formal types to which the
3069 --       pragma Remote_Access_Type applies.
3070 
3071 --    Is_Renaming_Of_Object (Flag112)
3072 --       Defined in all entities, set only for a variable or constant for
3073 --       which the Renamed_Object field is non-empty and for which the
3074 --       renaming is handled by the front end, by macro substitution of
3075 --       a copy of the (evaluated) name tree whereever the variable is used.
3076 
3077 --    Is_Return_Object (Flag209)
3078 --       Defined in all object entities. True if the object is the return
3079 --       object of an extended_return_statement; False otherwise.
3080 
3081 --    Is_Safe_To_Reevaluate (Flag249)
3082 --       Defined in all entities. Set in variables that are initialized by
3083 --       means of an assignment statement. When initialized their contents
3084 --       never change and hence they can be seen by the backend as constants.
3085 --       See also Is_True_Constant.
3086 
3087 --    Is_Scalar_Type (synthesized)
3088 --       Applies to all entities, true for scalar types and subtypes
3089 
3090 --    Is_Shared_Passive (Flag60)
3091 --       Defined in all entities. Set in E_Package and E_Generic_Package
3092 --       entities to which a pragma Shared_Passive is applied, and also in
3093 --       all entities within such packages.
3094 
3095 --    Is_Standard_Character_Type (synthesized)
3096 --       Applies to all entities, true for types and subtypes whose root type
3097 --       is one of the standard character types (Character, Wide_Character, or
3098 --       Wide_Wide_Character).
3099 
3100 --    Is_Standard_String_Type (synthesized)
3101 --       Applies to all entities, true for types and subtypes whose root
3102 --       type is one of the standard string types (String, Wide_String, or
3103 --       Wide_Wide_String).
3104 
3105 --    Is_Static_Type (Flag281)
3106 --       Defined in entities. Only set for (sub)types. If set, indicates that
3107 --       the type is known to be a static type (defined as a discrete type with
3108 --       static bounds, a record all of whose component types are static types,
3109 --       or an array, all of whose bounds are of a static type, and also have
3110 --       a component type that is a static type). See Set_Uplevel_Type for more
3111 --       information on how this flag is used.
3112 
3113 --    Is_Statically_Allocated (Flag28)
3114 --       Defined in all entities. This can only be set for exception,
3115 --       variable, constant, and type/subtype entities. If the flag is set,
3116 --       then the variable or constant must be allocated statically rather
3117 --       than on the local stack frame. For exceptions, the meaning is that
3118 --       the exception data should be allocated statically (and indeed this
3119 --       flag is always set for exceptions, since exceptions do not have
3120 --       local scope). For a type, the meaning is that the type must be
3121 --       elaborated at the global level rather than locally. No type marked
3122 --       with this flag may depend on a local variable, or on any other type
3123 --       which does not also have this flag set to True. For a variable or
3124 --       or constant, if the flag is set, then the type of the object must
3125 --       either be declared at the library level, or it must also have the
3126 --       flag set (since to allocate the object statically, its type must
3127 --       also be elaborated globally).
3128 
3129 --    Is_String_Type (synthesized)
3130 --       Applies to all type entities. Determines if the given type is a
3131 --       string type, i.e. it is directly a string type or string subtype,
3132 --       or a string slice type, or an array type with one dimension and a
3133 --       component type that is a character type.
3134 
3135 --    Is_Subprogram (synthesized)
3136 --       Applies to all entities, true for function, procedure and operator
3137 --       entities.
3138 
3139 --    Is_Subprogram_Or_Generic_Subprogram
3140 --       Applies to all entities, true for function procedure and operator
3141 --       entities, and also for the corresponding generic entities.
3142 
3143 --    Is_Synchronized_Interface (synthesized)
3144 --       Defined in types that are interfaces. True if interface is declared
3145 --       synchronized, task, or protected, or is derived from a synchronized
3146 --       interface.
3147 
3148 --    Is_Synchronized_State (synthesized)
3149 --       Applies to all entities, true for abstract states that are subject to
3150 --       option Synchronous.
3151 
3152 --    Is_Tag (Flag78)
3153 --       Defined in E_Component and E_Constant entities. For regular tagged
3154 --       type this flag is set on the tag component (whose name is Name_uTag).
3155 --       For CPP_Class tagged types, this flag marks the pointer to the main
3156 --       vtable (i.e. the one to be extended by derivation).
3157 
3158 --    Is_Tagged_Type (Flag55)
3159 --       Defined in all entities, set for an entity that is a tagged type
3160 
3161 --    Is_Task_Interface (synthesized)
3162 --       Defined in types that are interfaces. True if interface is declared as
3163 --       a task interface, or if it is derived from task interfaces.
3164 
3165 --    Is_Task_Record_Type (synthesized)
3166 --       Applies to all entities. True if Is_Concurrent_Record_Type
3167 --       Corresponding_Concurrent_Type is a task type.
3168 
3169 --    Is_Task_Type (synthesized)
3170 --       Applies to all entities. True for task types and subtypes
3171 
3172 --    Is_Thunk (Flag225)
3173 --       Defined in all entities. True for subprograms that are thunks: that is
3174 --       small subprograms built by the expander for tagged types that cover
3175 --       interface types. As part of the runtime call to an interface, thunks
3176 --       displace the pointer to the object (pointer named "this" in the C++
3177 --       terminology) from a secondary dispatch table to the primary dispatch
3178 --       table associated with a given tagged type; if the thunk is a function
3179 --       that returns an object which covers an interface type then the thunk
3180 --       displaces the pointer to the object from the primary dispatch table to
3181 --       the secondary dispatch table associated with the interface type. Set
3182 --       by Expand_Interface_Thunk and used by Expand_Call to handle extra
3183 --       actuals associated with accessibility level.
3184 
3185 --    Is_Trivial_Subprogram (Flag235)
3186 --       Defined in all entities. Set in subprograms where either the body
3187 --       consists of a single null statement, or the first or only statement
3188 --       of the body raises an exception. This is used for suppressing certain
3189 --       warnings, see Sem_Ch6.Analyze_Subprogram_Body discussion for details.
3190 
3191 --    Is_True_Constant (Flag163)
3192 --       Defined in all entities for constants and variables. Set in constants
3193 --       and variables which have an initial value specified but which are
3194 --       never assigned, partially or in the whole. For variables, it means
3195 --       that the variable was initialized but never modified, and hence can be
3196 --       treated as a constant by the code generator. For a constant, it means
3197 --       that the constant was not modified by generated code (e.g. to set a
3198 --       discriminant in an init proc). Assignments by user or generated code
3199 --       will reset this flag. See also Is_Safe_To_Reevaluate.
3200 
3201 --    Is_Type (synthesized)
3202 --       Applies to all entities, true for a type entity
3203 
3204 --    Is_Unchecked_Union (Flag117) [implementation base type only]
3205 --       Defined in all entities. Set only in record types to which the
3206 --       pragma Unchecked_Union has been validly applied.
3207 
3208 --    Is_Underlying_Record_View (Flag246) [base type only]
3209 --       Defined in all entities. Set only in record types that represent the
3210 --       underlying record view. This view is built for derivations of types
3211 --       with unknown discriminants; it is a record with the same structure
3212 --       as its corresponding record type, but whose parent is the full view
3213 --       of the parent in the original type extension.
3214 
3215 --    Is_Unimplemented (Flag284)
3216 --       Defined in all entities. Set for any entity to which a valid pragma
3217 --       or aspect Unimplemented applies.
3218 
3219 --    Is_Unsigned_Type (Flag144)
3220 --       Defined in all types, but can be set only for discrete and fixed-point
3221 --       type and subtype entities. This flag is only valid if the entity is
3222 --       frozen. If set it indicates that the representation is known to be
3223 --       unsigned (i.e. that no negative values appear in the range). This is
3224 --       normally just a reflection of the lower bound of the subtype or base
3225 --       type, but there is one case in which the setting is non-obvious,
3226 --       namely the case of an unsigned subtype of a signed type from which
3227 --       a further subtype is obtained using variable bounds. This further
3228 --       subtype is still unsigned, but this cannot be determined by looking
3229 --       at its bounds or the bounds of the corresponding base type.
3230 
3231 --    Is_Uplevel_Referenced_Entity (Flag283)
3232 --       Defined in all entities. Used when unnesting subprograms to indicate
3233 --       that an entity is locally defined within a subprogram P, and there is
3234 --       a reference to the entity within a subprogram nested within P (at any
3235 --       depth). Set for uplevel referenced objects (variables, constants and
3236 --       loop parameters), and also for upreferenced dynamic types, including
3237 --       the cases where the reference is implicit (e.g. the type of an array
3238 --       used for computing the location of an element in an array. This is
3239 --       used internally in Exp_Unst, see this package for further details.
3240 
3241 --    Is_Valued_Procedure (Flag127)
3242 --       Defined in procedure entities. Set if an Import_Valued_Procedure
3243 --       or Export_Valued_Procedure pragma applies to the procedure entity.
3244 
3245 --    Is_Visible_Formal (Flag206)
3246 --       Defined in all entities. Set for instances of the formals of a
3247 --       formal package. Indicates that the entity must be made visible in the
3248 --       body of the instance, to reproduce the visibility of the generic.
3249 --       This simplifies visibility settings in instance bodies.
3250 
3251 --    Is_Visible_Lib_Unit (Flag116)
3252 --       Defined in all (root or child) library unit entities. Once compiled,
3253 --       library units remain chained to the entities in the parent scope, and
3254 --       a separate flag must be used to indicate whether the names are visible
3255 --       by selected notation, or not.
3256 
3257 --    Is_Volatile (Flag16)
3258 --       Defined in all type entities, and also in constants, components and
3259 --       variables. Set if a pragma Volatile applies to the entity. Also set
3260 --       if pragma Shared or pragma Atomic applies to entity. In the case of
3261 --       private or incomplete types, this flag is set in both the private
3262 --       and full view. The flag is not set reliably on private subtypes,
3263 --       and is always retrieved from the base type (but this is not a base-
3264 --       type-only attribute because it applies to other entities). Note that
3265 --       the backend should use Treat_As_Volatile, rather than Is_Volatile
3266 --       to indicate code generation requirements for volatile variables.
3267 --       Similarly, any front end test which is concerned with suppressing
3268 --       optimizations on volatile objects should test Treat_As_Volatile
3269 --       rather than testing this flag.
3270 
3271 --    Is_Volatile_Full_Access (Flag285)
3272 --       Defined in all type entities, and also in constants, components, and
3273 --       variables. Set if a pragma Volatile_Full_Access applies to the entity.
3274 --       In the case of private and incomplete types, this flag is set in
3275 --       both the partial view and the full view.
3276 
3277 --    Is_Wrapper_Package (synthesized)
3278 --       Defined in package entities. Indicates that the package has been
3279 --       created as a wrapper for a subprogram instantiation.
3280 
3281 --    Itype_Printed (Flag202)
3282 --       Defined in all type and subtype entities. Set in Itypes if the Itype
3283 --       has been printed by Sprint. This is used to avoid printing an Itype
3284 --       more than once.
3285 
3286 --    Kill_Elaboration_Checks (Flag32)
3287 --       Defined in all entities. Set by the expander to kill elaboration
3288 --       checks which are known not to be needed. Equivalent in effect to
3289 --       the use of pragma Suppress (Elaboration_Checks) for that entity
3290 --       except that the effect is permanent and cannot be undone by a
3291 --       subsequent pragma Unsuppress.
3292 
3293 --    Kill_Range_Checks (Flag33)
3294 --       Defined in all entities. Equivalent in effect to the use of pragma
3295 --       Suppress (Range_Checks) for that entity except that the result is
3296 --       permanent and cannot be undone by a subsequent pragma Unsuppress.
3297 --       This is currently only used in one odd situation in Sem_Ch3 for
3298 --       record types, and it would be good to get rid of it???
3299 
3300 --    Known_To_Have_Preelab_Init (Flag207)
3301 --       Defined in all type and subtype entities. If set, then the type is
3302 --       known to have preelaborable initialization. In the case of a partial
3303 --       view of a private type, it is only possible for this to be set if a
3304 --       pragma Preelaborable_Initialization is given for the type. For other
3305 --       types, it is never set if the type does not have preelaborable
3306 --       initialization, it may or may not be set if the type does have
3307 --       preelaborable initialization.
3308 
3309 --    Last_Aggregate_Assignment (Node30)
3310 --       Applies to controlled constants and variables initialized by an
3311 --       aggregate. Points to the last statement associated with the expansion
3312 --       of the aggregate. The attribute is used by the finalization machinery
3313 --       when marking an object as successfully initialized.
3314 
3315 --    Last_Assignment (Node26)
3316 --       Defined in entities for variables, and OUT or IN OUT formals. Set for
3317 --       a local variable or formal to point to the left side of an assignment
3318 --       statement assigning a value to the variable. Cleared if the value of
3319 --       the entity is referenced. Used to warn about dubious assignment
3320 --       statements whose value is not used.
3321 
3322 --    Last_Entity (Node20)
3323 --       Defined in all entities which act as scopes to which a list of
3324 --       associated entities is attached (blocks, class subtypes and types,
3325 --       entries, functions, loops, packages, procedures, protected objects,
3326 --       record types and subtypes, private types, task types and subtypes).
3327 --       Points to the last entry in the list of associated entities chained
3328 --       through the Next_Entity field. Empty if no entities are chained.
3329 
3330 --    Last_Formal (synthesized)
3331 --       Applies to subprograms and subprogram types, and also in entries
3332 --       and entry families. Returns last formal of the subprogram or entry.
3333 --       The formals are the first entities declared in a subprogram or in
3334 --       a subprogram type (the designated type of an Access_To_Subprogram
3335 --       definition) or in an entry.
3336 
3337 --    Limited_View (Node23)
3338 --       Defined in non-generic package entities that are not instances. Bona
3339 --       fide package with the limited-view list through the first_entity and
3340 --       first_private attributes. The elements of this list are the shadow
3341 --       entities created for the types and local packages that are declared
3342 --       in a package appearing in a limited_with clause (Ada 2005: AI-50217).
3343 
3344 --    Linker_Section_Pragma (Node33)
3345 --       Present in constant, variable, type and subprogram entities. Points
3346 --       to a linker section pragma that applies to the entity, or is Empty if
3347 --       no such pragma applies. Note that for constants and variables, this
3348 --       field may be set as a result of a linker section pragma applied to the
3349 --       type of the object.
3350 
3351 --    Lit_Indexes (Node18)
3352 --       Defined in enumeration types and subtypes. Non-empty only for the
3353 --       case of an enumeration root type, where it contains the entity for
3354 --       the generated indexes entity. See unit Exp_Imgv for full details of
3355 --       the nature and use of this entity for implementing the Image and
3356 --       Value attributes for the enumeration type in question.
3357 
3358 --    Lit_Strings (Node16)
3359 --       Defined in enumeration types and subtypes. Non-empty only for the
3360 --       case of an enumeration root type, where it contains the entity for
3361 --       the literals string entity. See unit Exp_Imgv for full details of
3362 --       the nature and use of this entity for implementing the Image and
3363 --       Value attributes for the enumeration type in question.
3364 
3365 --    Low_Bound_Tested (Flag205)
3366 --       Defined in all entities. Currently this can only be set for formal
3367 --       parameter entries of a standard unconstrained one-dimensional array
3368 --       or string type. Indicates that an explicit test of the low bound of
3369 --       the formal appeared in the code, e.g. in a pragma Assert. If this
3370 --       flag is set, warnings about assuming the index low bound to be one
3371 --       are suppressed.
3372 
3373 --    Machine_Radix_10 (Flag84)
3374 --       Defined in decimal types and subtypes, set if the Machine_Radix is 10,
3375 --       as the result of the specification of a machine radix representation
3376 --       clause. Note that it is possible for this flag to be set without
3377 --       having Has_Machine_Radix_Clause True. This happens when a type is
3378 --       derived from a type with a clause present.
3379 
3380 --    Master_Id (Node17)
3381 --       Defined in access types and subtypes. Empty unless Has_Task is set for
3382 --       the designated type, in which case it points to the entity for the
3383 --       Master_Id for the access type master. Also set for access-to-limited-
3384 --       class-wide types whose root may be extended with task components, and
3385 --       for access-to-limited-interfaces because they can be used to reference
3386 --       tasks implementing such interface.
3387 
3388 --    Materialize_Entity (Flag168)
3389 --       Defined in all entities. Set only for renamed obects which should be
3390 --       materialized for debugging purposes. This means that a memory location
3391 --       containing the renamed address should be allocated. This is needed so
3392 --       that the debugger can find the entity.
3393 
3394 --    May_Inherit_Delayed_Rep_Aspects (Flag262)
3395 --       Defined in all entities for types and subtypes. Set if the type is
3396 --       derived from a type which has delayed rep aspects (marked by the flag
3397 --       Has_Delayed_Rep_Aspects being set). In this case, at the freeze point
3398 --       for the derived type we know that the parent type is frozen, and if
3399 --       a given attribute has not been set for the derived type, we copy the
3400 --       value from the parent type. See Freeze.Inherit_Delayed_Rep_Aspects.
3401 
3402 --    Mechanism (Uint8) (returned as Mechanism_Type)
3403 --       Defined in functions and non-generic formal parameters. Indicates
3404 --       the mechanism to be used for the function return or for the formal
3405 --       parameter. See full description in the spec of Sem_Mech. This field
3406 --       is also set (to the default value of zero = Default_Mechanism) in a
3407 --       subprogram body entity but not used in this context.
3408 
3409 --    Modulus (Uint17) [base type only]
3410 --       Defined in modular types. Contains the modulus. For the binary case,
3411 --       this will be a power of 2, but if Non_Binary_Modulus is set, then it
3412 --       will not be a power of 2.
3413 
3414 --    Must_Be_On_Byte_Boundary (Flag183)
3415 --       Defined in entities for types and subtypes. Set if objects of the type
3416 --       must always be allocated on a byte boundary (more accurately a storage
3417 --       unit boundary). The front end checks that component clauses respect
3418 --       this rule, and the backend ensures that record packing does not
3419 --       violate this rule. Currently the flag is set only for packed arrays
3420 --       longer than 64 bits where the component size is not a power of 2.
3421 
3422 --    Must_Have_Preelab_Init (Flag208)
3423 --       Defined in entities for types and subtypes. Set in the full type of a
3424 --       private type or subtype if a pragma Has_Preelaborable_Initialization
3425 --       is present for the private type. Used to check that the full type has
3426 --       preelaborable initialization at freeze time (this has to be deferred
3427 --       to the freeze point because of the rule about overriding Initialize).
3428 
3429 --    Needs_Debug_Info (Flag147)
3430 --       Defined in all entities. Set if the entity requires normal debugging
3431 --       information to be generated. This is true of all entities that have
3432 --       Comes_From_Source set, and also transitively for entities associated
3433 --       with such components (e.g. their types). It is true for all entities
3434 --       in Debug_Generated_Code mode (-gnatD switch). This is the flag that
3435 --       the backend should check to determine whether or not to generate
3436 --       debugging information for an entity. Note that callers should always
3437 --       use Sem_Util.Set_Debug_Info_Needed, rather than Set_Needs_Debug_Info,
3438 --       so that the flag is set properly on subsidiary entities.
3439 
3440 --    Needs_No_Actuals (Flag22)
3441 --       Defined in callable entities (subprograms, entries, access to
3442 --       subprograms) which can be called without actuals because all of
3443 --       their formals (if any) have default values. This flag simplifies the
3444 --       resolution of the syntactic ambiguity involving a call to these
3445 --       entities when the return type is an array type, and a call can be
3446 --       interpreted as an indexing of the result of the call. It is also
3447 --       used to resolve various cases of entry calls.
3448 
3449 --    Never_Set_In_Source (Flag115)
3450 --       Defined in all entities, but can be set only for variables and
3451 --       parameters. This flag is set if the object is never assigned a value
3452 --       in user source code, either by assignment or by being used as an out
3453 --       or in out parameter. Note that this flag is not reset from using an
3454 --       initial value, so if you want to test for this case as well, test the
3455 --       Has_Initial_Value flag also.
3456 --
3457 --       This flag is only for the purposes of issuing warnings, it must not
3458 --       be used by the code generator to indicate that the variable is in
3459 --       fact a constant, since some assignments in generated code do not
3460 --       count (for example, the call to an init proc to assign some but
3461 --       not all of the fields in a partially initialized record). The code
3462 --       generator should instead use the flag Is_True_Constant.
3463 --
3464 --       For the purposes of this warning, the default assignment of access
3465 --       variables to null is not considered the assignment of a value (so
3466 --       the warning can be given for code that relies on this initial null
3467 --       value when no other value is ever set).
3468 --
3469 --       In variables and out parameters, if this flag is set after full
3470 --       processing of the corresponding declarative unit, it indicates that
3471 --       the variable or parameter was never set, and a warning message can
3472 --       be issued.
3473 --
3474 --       Note: this flag is initially set, and then cleared on encountering
3475 --       any construct that might conceivably legitimately set the value.
3476 --       Thus during the analysis of a declarative region and its associated
3477 --       statement sequence, the meaning of the flag is "not set yet", and
3478 --       once this analysis is complete the flag means "never assigned".
3479 
3480 --       Note: for variables appearing in package declarations, this flag is
3481 --       never set. That is because there is no way to tell if some client
3482 --       modifies the variable (or, in the case of variables in the private
3483 --       part, if some child unit modifies the variables).
3484 
3485 --       Note: in the case of renamed objects, the flag must be set in the
3486 --       ultimate renamed object. Clients noting a possible modification
3487 --       should use the Note_Possible_Modification procedure in Sem_Util
3488 --       rather than Set_Never_Set_In_Source precisely to deal properly with
3489 --       the renaming possibility.
3490 
3491 --    Next_Component (synthesized)
3492 --       Applies to record components. Returns the next component by following
3493 --       the chain of declared entities until one is found which corresponds to
3494 --       a component (Ekind is E_Component). Any internal types generated from
3495 --       the subtype indications of the record components are skipped. Returns
3496 --       Empty if no more components.
3497 
3498 --    Next_Component_Or_Discriminant (synthesized)
3499 --      Similar to Next_Component, but includes components and discriminants
3500 --      so the input can have either E_Component or E_Discriminant, and the
3501 --      same is true for the result. Returns Empty if no more components or
3502 --      discriminants in the record.
3503 
3504 --    Next_Discriminant (synthesized)
3505 --       Applies to discriminants returned by First/Next_Discriminant. Returns
3506 --       the next language-defined (i.e. perhaps non-girder) discriminant by
3507 --       following the chain of declared entities as long as the kind of the
3508 --       entity corresponds to a discriminant. Note that the discriminants
3509 --       might be the only components of the record. Returns Empty if there
3510 --       are no more discriminants.
3511 
3512 --    Next_Entity (Node2)
3513 --       Defined in all entities. The entities of a scope are chained, with
3514 --       the head of the list being in the First_Entity field of the scope
3515 --       entity. All entities use the Next_Entity field as a forward pointer
3516 --       for this list, with Empty indicating the end of the list. Since this
3517 --       field is in the base part of the entity, the access routines for this
3518 --       field are in Sinfo.
3519 
3520 --    Next_Formal (synthesized)
3521 --       Applies to the entity for a formal parameter. Returns the next formal
3522 --       parameter of the subprogram or subprogram type. Returns Empty if there
3523 --       are no more formals.
3524 
3525 --    Next_Formal_With_Extras (synthesized)
3526 --       Applies to the entity for a formal parameter. Returns the next
3527 --       formal parameter of the subprogram or subprogram type. Returns
3528 --       Empty if there are no more formals. The list returned includes
3529 --       all the extra formals (see description of Extra_Formal field)
3530 
3531 --    Next_Index (synthesized)
3532 --       Applies to array types and subtypes and to string types and
3533 --       subtypes. Yields the next index. The first index is obtained by
3534 --       using the First_Index attribute, and then subsequent indexes are
3535 --       obtained by applying Next_Index to the previous index. Empty is
3536 --       returned to indicate that there are no more indexes. Note that
3537 --       unlike most attributes in this package, Next_Index applies to
3538 --       nodes for the indexes, not to entities.
3539 
3540 --    Next_Inlined_Subprogram (Node12)
3541 --       Defined in subprograms. Used to chain inlined subprograms used in
3542 --       the current compilation, in the order in which they must be compiled
3543 --       by the backend to ensure that all inlinings are performed.
3544 
3545 --    Next_Literal (synthesized)
3546 --       Applies to enumeration literals, returns the next literal, or
3547 --       Empty if applied to the last literal. This is actually a synonym
3548 --       for Next, but its use is preferred in this context.
3549 
3550 --    No_Dynamic_Predicate_On_Actual (Flag276)
3551 --       Defined in discrete types. Set for generic formal types that are used
3552 --       in loops and quantified expressions. The corresponing actual cannot
3553 --       have dynamic predicates.
3554 
3555 --    No_Pool_Assigned (Flag131) [root type only]
3556 --       Defined in access types. Set if a storage size clause applies to the
3557 --       variable with a static expression value of zero. This flag is used to
3558 --       generate errors if any attempt is made to allocate or free an instance
3559 --       of such an access type. This is set only in the root type, since
3560 --       derived types must have the same pool.
3561 
3562 --    No_Predicate_On_Actual (Flag275)
3563 --       Defined in discrete types. Set for generic formal types that are used
3564 --       in the spec of a generic package, in constructs that forbid discrete
3565 --       types with predicates.
3566 
3567 --    No_Return (Flag113)
3568 --       Defined in all entities. Always false except in the case of procedures
3569 --       and generic procedures for which a pragma No_Return is given.
3570 
3571 --    No_Strict_Aliasing (Flag136) [base type only]
3572 --       Defined in access types. Set to direct the backend to avoid any
3573 --       optimizations based on an assumption about the aliasing status of
3574 --       objects designated by the access type. For the case of the gcc
3575 --       backend, the effect is as though all references to objects of
3576 --       the type were compiled with -fno-strict-aliasing. This flag is
3577 --       set if an unchecked conversion with the access type as a target
3578 --       type occurs in the same source unit as the declaration of the
3579 --       access type, or if an explicit pragma No_Strict_Aliasing applies.
3580 
3581 --    No_Tagged_Streams_Pragma (Node32)
3582 --       Present in all subtype and type entities. Set for tagged types and
3583 --       subtypes (i.e. entities with Is_Tagged_Type set True) if a valid
3584 --       pragma/aspect applies to the type.
3585 
3586 --    Non_Binary_Modulus (Flag58) [base type only]
3587 --       Defined in all subtype and type entities. Set for modular integer
3588 --       types if the modulus value is other than a power of 2.
3589 
3590 --    Non_Limited_View (Node19)
3591 --       Defined in abstract states and incomplete types that act as shadow
3592 --       entities created when analysing a limited with clause (Ada 2005:
3593 --       AI-50217). Points to the defining entity of the original declaration.
3594 
3595 --    Nonzero_Is_True (Flag162) [base type only]
3596 --       Defined in enumeration types. Set if any non-zero value is to be
3597 --       interpreted as true. Currently this is set for derived Boolean
3598 --       types which have a convention of C, C++ or Fortran.
3599 
3600 --    Normalized_First_Bit (Uint8)
3601 --       Defined in components and discriminants. Indicates the normalized
3602 --       value of First_Bit for the component, i.e. the offset within the
3603 --       lowest addressed storage unit containing part or all of the field.
3604 --       Set to No_Uint if no first bit position is assigned yet.
3605 
3606 --    Normalized_Position (Uint14)
3607 --       Defined in components and discriminants. Indicates the normalized
3608 --       value of Position for the component, i.e. the offset in storage
3609 --       units from the start of the record to the lowest addressed storage
3610 --       unit containing part or all of the field.
3611 
3612 --    Normalized_Position_Max (Uint10)
3613 --       Defined in components and discriminants. For almost all cases, this
3614 --       is the same as Normalized_Position. The one exception is for the case
3615 --       of a discriminated record containing one or more arrays whose length
3616 --       depends on discriminants. In this case, the Normalized_Position_Max
3617 --       field represents the maximum possible value of Normalized_Position
3618 --       assuming min/max values for discriminant subscripts in all fields.
3619 --       This is used by Layout in front end layout mode to properly computed
3620 --       the maximum size such records (needed for allocation purposes when
3621 --       there are default discriminants, and also for the 'Size value).
3622 
3623 --    Number_Dimensions (synthesized)
3624 --       Applies to array types and subtypes. Returns the number of dimensions
3625 --       of the array type or subtype as a value of type Pos.
3626 
3627 --    Number_Entries (synthesized)
3628 --       Applies to concurrent types. Returns the number of entries that are
3629 --       declared within the task or protected definition for the type.
3630 
3631 --    Number_Formals (synthesized)
3632 --       Applies to subprograms and subprogram types. Yields the number of
3633 --       formals as a value of type Pos.
3634 
3635 --    OK_To_Rename (Flag247)
3636 --       Defined only in entities for variables. If this flag is set, it
3637 --       means that if the entity is used as the initial value of an object
3638 --       declaration, the object declaration can be safely converted into a
3639 --       renaming to avoid an extra copy. This is set for variables which are
3640 --       generated by the expander to hold the result of evaluating some
3641 --       expression. Most notably, the local variables used to store the result
3642 --       of concatenations are so marked (see Exp_Ch4.Expand_Concatenate). It
3643 --       is only worth setting this flag for composites, since for primitive
3644 --       types, it is cheaper to do the copy.
3645 
3646 --    OK_To_Reorder_Components (Flag239) [base type only]
3647 --       Defined in record types. Set if the backend is permitted to reorder
3648 --       the components. If not set, the record must be layed out in the order
3649 --       in which the components are declared textually. Currently this flag
3650 --       can only be set by debug switches.
3651 
3652 --    Optimize_Alignment_Space (Flag241)
3653 --       Defined in type, subtype, variable, and constant entities. This
3654 --       flag records that the type or object is to be layed out in a manner
3655 --       consistent with Optimize_Alignment (Space) mode. The compiler and
3656 --       binder ensure a consistent view of any given type or object. If pragma
3657 --       Optimize_Alignment (Off) mode applies to the type/object, then neither
3658 --       of the flags Optimize_Alignment_Space/Optimize_Alignment_Time is set.
3659 
3660 --    Optimize_Alignment_Time (Flag242)
3661 --       Defined in type, subtype, variable, and constant entities. This
3662 --       flag records that the type or object is to be layed out in a manner
3663 --       consistent with Optimize_Alignment (Time) mode. The compiler and
3664 --       binder ensure a consistent view of any given type or object. If pragma
3665 --       Optimize_Alignment (Off) mode applies to the type/object, then neither
3666 --       of the flags Optimize_Alignment_Space/Optimize_Alignment_Time is set.
3667 
3668 --    Original_Access_Type (Node28)
3669 --       Defined in E_Access_Subprogram_Type entities. Set only if the access
3670 --       type was generated by the expander as part of processing an access
3671 --       to protected subprogram type. Points to the access to protected
3672 --       subprogram type.
3673 
3674 --    Original_Array_Type (Node21)
3675 --       Defined in modular types and array types and subtypes. Set only if
3676 --       the Is_Packed_Array_Impl_Type flag is set, indicating that the type
3677 --       is the implementation type for a packed array, and in this case it
3678 --       points to the original array type for which this is the packed
3679 --       array implementation type.
3680 
3681 --    Original_Protected_Subprogram (Node41)
3682 --       Defined in functions and procedures. Set only on internally built
3683 --       dispatching subprograms of protected types to reference their original
3684 --       non-dispatching protected subprogram since their names differ.
3685 
3686 --    Original_Record_Component (Node22)
3687 --       Defined in components, including discriminants. The usage depends
3688 --       on whether the record is a base type and whether it is tagged.
3689 --
3690 --       In base tagged types:
3691 --         When the component is inherited in a record extension, it points
3692 --         to the original component (the entity of the ancestor component
3693 --         which is not itself inherited) otherwise it points to itself. The
3694 --         backend uses this attribute to implement the automatic dereference
3695 --         in the extension and to apply the transformation:
3696 --
3697 --            Rec_Ext.Comp -> Rec_Ext.Parent. ... .Parent.Comp
3698 --
3699 --       In base untagged types:
3700 --         Always points to itself except for non-girder discriminants, where
3701 --         it points to the girder discriminant it renames.
3702 --
3703 --       In subtypes (tagged and untagged):
3704 --         Points to the component in the base type.
3705 
3706 --    Overlays_Constant (Flag243)
3707 --       Defined in all entities. Set only for E_Constant or E_Variable for
3708 --       which there is an address clause that causes the entity to overlay
3709 --       a constant object.
3710 
3711 --    Overridden_Operation (Node26)
3712 --       Defined in subprograms. For overriding operations, points to the
3713 --       user-defined parent subprogram that is being overridden. Note: this
3714 --       attribute uses the same field as Static_Initialization. The latter
3715 --       is only defined for internal initialization procedures, for which
3716 --       Overridden_Operation is irrelevant. Thus this attribute must not be
3717 --       set for init_procs.
3718 
3719 --    Package_Instantiation (Node26)
3720 --       Defined in packages and generic packages. When defined, this field
3721 --       references an N_Generic_Instantiation node associated with an
3722 --       instantiated package. In the case where the referenced node has
3723 --       been rewritten to an N_Package_Specification, the instantiation
3724 --       node is available from the Original_Node field of the package spec
3725 --       node. This is currently not guaranteed to be set in all cases, but
3726 --       when set, the field is used in Get_Package_Instantiation_Node as
3727 --       one of the means of obtaining the instantiation node. Eventually
3728 --       it should be set in all cases, including package entities associated
3729 --       with formal packages. ???
3730 
3731 --    Packed_Array_Impl_Type (Node23)
3732 --       Defined in array types and subtypes, except for the string literal
3733 --       subtype case, if the corresponding type is packed and implemented
3734 --       specially (either bit-packed or packed to eliminate holes in the
3735 --       non-contiguous enumeration index types). References the type used to
3736 --       represent the packed array, which is either a modular type for short
3737 --       static arrays or an array of System.Unsigned in the bit-packed case,
3738 --       or a regular array in the non-standard enumeration index case). Note
3739 --       that in some situations (internal types and references to fields of
3740 --       variant records), it is not always possible to construct this type in
3741 --       advance of its use. If this field is empty, then the necessary type
3742 --       is declared on the fly for each reference to the array.
3743 
3744 --    Parameter_Mode (synthesized)
3745 --       Applies to formal parameter entities. This is a synonym for Ekind,
3746 --       used when obtaining the formal kind of a formal parameter (the result
3747 --       is one of E_[In/Out/In_Out]_Parameter).
3748 
3749 --    Parent_Subtype (Node19) [base type only]
3750 --       Defined in E_Record_Type. Set only for derived tagged types, in which
3751 --       case it points to the subtype of the parent type. This is the type
3752 --       that is used as the Etype of the _parent field.
3753 
3754 --    Part_Of_Constituents (Elist10)
3755 --       Present in abstract state and variable entities. Contains all
3756 --       constituents that are subject to indicator Part_Of (both aspect and
3757 --       option variants).
3758 
3759 --    Part_Of_References (Elist11)
3760 --       Present in variable entities. Contains all references to the variable
3761 --       when it is subject to pragma Part_Of. If the variable is a constituent
3762 --       of a single protected/task type, the references are examined as they
3763 --       must appear only within the type defintion and the corresponding body.
3764 
3765 --    Partial_Invariant_Procedure (synthesized)
3766 --       Defined in types and subtypes. Set for private types when one or more
3767 --       [class-wide] type invariants apply to them. Points to the entity for a
3768 --       procedure which checks the invariant. This invariant procedure takes a
3769 --       single argument of the given type, and returns if the invariant holds,
3770 --       or raises exception Assertion_Error with an appropriate message if it
3771 --       does not hold. This attribute is defined but always Empty for private
3772 --       subtypes. This attribute is also set for the corresponding full type.
3773 --
3774 --       Note: the reason this is marked as a synthesized attribute is that the
3775 --       way this is stored is as an element of the Subprograms_For_Type field.
3776 
3777 --    Partial_View_Has_Unknown_Discr (Flag280)
3778 --       Present in all types. Set to Indicate that the partial view of a type
3779 --       has unknown discriminants. A default initialization of an object of
3780 --       the type does not require an invariant check (AI12-0133).
3781 
3782 --    Pending_Access_Types (Elist15)
3783 --       Defined in all types. Set for incomplete, private, Taft-amendment
3784 --       types, and their corresponding full views. This list contains all
3785 --       access types, both named and anonymous, declared between the partial
3786 --       and the full view. The list is used by the finalization machinery to
3787 --       ensure that the finalization masters of all pending access types are
3788 --       fully initialized when the full view is frozen.
3789 
3790 --    Postconditions_Proc (Node14)
3791 --       Defined in functions, procedures, entries, and entry families. Refers
3792 --       to the entity of the _Postconditions procedure used to check contract
3793 --       assertions on exit from a subprogram.
3794 
3795 --    Predicate_Function (synthesized)
3796 --       Defined in all types. Set for types for which (Has_Predicates is True)
3797 --       and for which a predicate procedure has been built that tests that the
3798 --       specified predicates are True. Contains the entity for the function
3799 --       which takes a single argument of the given type, and returns True if
3800 --       the predicate holds and False if it does not.
3801 --
3802 --       Note: flag Has_Predicate does not imply that Predicate_Function is set
3803 --       to a non-empty entity; this happens, for example, for itypes created
3804 --       when instantiating generic units with private types with predicates.
3805 --       However, if an explicit pragma Predicate or Predicate aspect is given
3806 --       either for private or full type declaration then both Has_Predicates
3807 --       and a non-empty Predicate_Function will be set on both the partial and
3808 --       full views of the type.
3809 --
3810 --       Note: the reason this is marked as a synthesized attribute is that the
3811 --       way this is stored is as an element of the Subprograms_For_Type field.
3812 
3813 --    Predicate_Function_M (synthesized)
3814 --       Defined in all types. Present only if Predicate_Function is present,
3815 --       and only if the predicate function has Raise_Expression nodes. It
3816 --       is the special version created for membership tests, where if one of
3817 --       these raise expressions is executed, the result is to return False.
3818 
3819 --    Predicates_Ignored (Flag288)
3820 --       Defined on all types. Indicates whether the subtype declaration is in
3821 --       a context where Assertion_Policy is Ignore, in which case no checks
3822 --       (static or dynamic) must be generated for objects of the type.
3823 
3824 --    Primitive_Operations (synthesized)
3825 --       Defined in concurrent types, tagged record types and subtypes, tagged
3826 --       private types and tagged incomplete types. For concurrent types whose
3827 --       Corresponding_Record_Type (CRT) is available, returns the list of
3828 --       Direct_Primitive_Operations of its CRT; otherwise returns No_Elist.
3829 --       For all the other types returns the Direct_Primitive_Operations.
3830 
3831 --    Prival (Node17)
3832 --       Defined in private components of protected types. Refers to the entity
3833 --       of the component renaming declaration generated inside protected
3834 --       subprograms, entries or barrier functions.
3835 
3836 --    Prival_Link (Node20)
3837 --       Defined in constants and variables which rename private components of
3838 --       protected types. Set to the original private component.
3839 
3840 --    Private_Dependents (Elist18)
3841 --       Defined in private (sub)types. Records the subtypes of the private
3842 --       type, derivations from it, and records and arrays with components
3843 --       dependent on the type.
3844 --
3845 --       The subtypes are traversed when installing and deinstalling (the full
3846 --       view of) a private type in order to ensure correct view of the
3847 --       subtypes.
3848 --
3849 --       Used in similar fashion for incomplete types: holds list of subtypes
3850 --       of these incomplete types that have discriminant constraints. The
3851 --       full views of these subtypes are constructed when the full view of
3852 --       the incomplete type is processed.
3853 
3854 --       In addition, if the incomplete type is the designated type in an
3855 --       access definition for an access parameter, the operation may be
3856 --       a dispatching primitive operation, which is only known when the full
3857 --       declaration of the type is seen. Subprograms that have such an
3858 --       access parameter are also placed in the list of private_dependents.
3859 
3860 --    Private_View (Node22)
3861 --       For each private type, three entities are allocated, the private view,
3862 --       the full view, and the shadow entity. The shadow entity contains a
3863 --       copy of the private view and is used for restoring the proper private
3864 --       view after a region in which the full view is visible (and is copied
3865 --       into the entity normally used for the private view during this period
3866 --       of visibility). The Private_View field is self-referential when the
3867 --       private view lives in its normal entity, but in the copy that is made
3868 --       in the shadow entity, it points to the proper location in which to
3869 --       restore the private view saved in the shadow.
3870 
3871 --    Protected_Body_Subprogram (Node11)
3872 --       Defined in protected operations. References the entity for the
3873 --       subprogram which implements the body of the operation.
3874 
3875 --    Protected_Formal (Node22)
3876 --       Defined in formal parameters (in, in out and out parameters). Used
3877 --       only for formals of protected operations. References corresponding
3878 --       formal parameter in the unprotected version of the operation that
3879 --       is created during expansion.
3880 
3881 --    Protection_Object (Node23)
3882 --       Applies to protected entries, entry families and subprograms. Denotes
3883 --       the entity which is used to rename the _object component of protected
3884 --       types.
3885 
3886 --    Reachable (Flag49)
3887 --       Defined in labels. The flag is set over the range of statements in
3888 --       which a goto to that label is legal.
3889 
3890 --    Referenced (Flag156)
3891 --       Defined in all entities. Set if the entity is referenced, except for
3892 --       the case of an appearance of a simple variable that is not a renaming
3893 --       as the left side of an assignment in which case Referenced_As_LHS is
3894 --       set instead, or a similar appearance as an out parameter actual, in
3895 --       which case Referenced_As_Out_Parameter is set.
3896 
3897 --    Referenced_As_LHS (Flag36):
3898 --       Defined in all entities. This flag is set instead of Referenced if a
3899 --       simple variable that is not a renaming appears as the left side of an
3900 --       assignment. The reason we distinguish this kind of reference is that
3901 --       we have a separate warning for variables that are only assigned and
3902 --       never read.
3903 
3904 --    Referenced_As_Out_Parameter (Flag227):
3905 --       Defined in all entities. This flag is set instead of Referenced if a
3906 --       simple variable that is not a renaming appears as an actual for an out
3907 --       formal. The reason we distinguish this kind of reference is that
3908 --       we have a separate warning for variables that are only assigned and
3909 --       never read, and out parameters are a special case.
3910 
3911 --    Refinement_Constituents (Elist8)
3912 --       Present in abstract state entities. Contains all the constituents that
3913 --       refine the state, in other words, all the hidden states that appear in
3914 --       the constituent_list of aspect/pragma Refined_State.
3915 
3916 --    Register_Exception_Call (Node20)
3917 --       Defined in exception entities. When an exception is declared,
3918 --       a call is expanded to Register_Exception. This field points to
3919 --       the expanded N_Procedure_Call_Statement node for this call. It
3920 --       is used for Import/Export_Exception processing to modify the
3921 --       register call to make appropriate entries in the special tables
3922 --       used for handling these pragmas at runtime.
3923 
3924 --    Related_Array_Object (Node25)
3925 --       Defined in array types and subtypes. Used only for the base type
3926 --       and subtype created for an anonymous array object. Set to point
3927 --       to the entity of the corresponding array object. Currently used
3928 --       only for type-related error messages.
3929 
3930 --    Related_Expression (Node24)
3931 --       Defined in variables and types. When Set for internally generated
3932 --       entities, it may be used to denote the source expression whose
3933 --       elaboration created the variable declaration. If set, it is used
3934 --       for generating clearer messages from CodePeer. It is used on source
3935 --       entities that are variables in iterator specifications, to provide
3936 --       a link to the container that is the domain of iteration. This allows
3937 --       for better cross-reference information when the loop modifies elements
3938 --       of the container, and suppresses spurious warnings.
3939 --
3940 --       Shouldn't it also be used for the same purpose in errout? It seems
3941 --       odd to have two mechanisms here???
3942 
3943 --    Related_Instance (Node15)
3944 --       Defined in the wrapper packages created for subprogram instances.
3945 --       The internal subprogram that implements the instance is inside the
3946 --       wrapper package, but for debugging purposes its external symbol
3947 --       must correspond to the name and scope of the related instance.
3948 
3949 --    Related_Type (Node27)
3950 --       Defined in components, constants and variables. Set when there is an
3951 --       associated dispatch table to point to entities containing primary or
3952 --       secondary tags. Not set in the _tag component of record types.
3953 
3954 --    Relative_Deadline_Variable (Node28) [implementation base type only]
3955 --       Defined in task type entities. This flag is set if a valid and
3956 --       effective pragma Relative_Deadline applies to the base type. Points
3957 --       to the entity for a variable that is created to hold the value given
3958 --       in a Relative_Deadline pragma for a task type.
3959 
3960 --    Renamed_Entity (Node18)
3961 --       Defined in exceptions, packages, subprograms, and generic units. Set
3962 --       for entities that are defined by a renaming declaration. Denotes the
3963 --       renamed entity, or transitively the ultimate renamed entity if
3964 --       there is a chain of renaming declarations. Empty if no renaming.
3965 
3966 --    Renamed_In_Spec (Flag231)
3967 --       Defined in package entities. If a package renaming occurs within
3968 --       a package spec, then this flag is set on the renamed package. The
3969 --       purpose is to prevent a warning about unused entities in the renamed
3970 --       package. Such a warning would be inappropriate since clients of the
3971 --       package can see the entities in the package via the renaming.
3972 
3973 --    Renamed_Object (Node18)
3974 --       Defined in components, constants, discriminants, formal parameters,
3975 --       generic formals, loop parameters, and variables. Set to non-Empty if
3976 --       the object was declared by a renaming declaration. For constants and
3977 --       variables, the attribute references the tree node for the name of the
3978 --       renamed object. For formal parameters, the field is used in inlining
3979 --       and maps the entities of all formal parameters of a subprogram to the
3980 --       entities of the corresponding actuals. For formals of a task entry,
3981 --       the attribute denotes the local renaming that replaces the actual
3982 --       within an accept statement. For all remaining cases (discriminants,
3983 --       loop parameters) the field is Empty.
3984 
3985 --    Renaming_Map (Uint9)
3986 --       Defined in generic subprograms, generic packages, and their
3987 --       instances. Also defined in the instances of the corresponding
3988 --       bodies. Denotes the renaming map (generic entities => instance
3989 --       entities) used to construct the instance by givin an index into
3990 --       the tables used to represent these maps. See Sem_Ch12 for further
3991 --       details. The maps for package instances are also used when the
3992 --       instance is the actual corresponding to a formal package.
3993 
3994 --    Requires_Overriding (Flag213)
3995 --       Defined in all subprograms and entries. Set for subprograms that
3996 --       require overriding as defined by RM-2005-3.9.3(6/2). Note that this
3997 --       is True only for implicitly declared subprograms; it is not set on the
3998 --       parent type's subprogram. See also Is_Abstract_Subprogram.
3999 
4000 --    Return_Applies_To (Node8)
4001 --       Defined in E_Return_Statement. Points to the entity representing
4002 --       the construct to which the return statement applies, as defined in
4003 --       RM-6.5(4/2). Note that a (simple) return statement within an
4004 --       extended_return_statement applies to the extended_return_statement,
4005 --       even though it causes the whole function to return.
4006 
4007 --    Return_Present (Flag54)
4008 --       Defined in function and generic function entities. Set if the
4009 --       function contains a return statement (used for error checking).
4010 --       This flag can also be set in procedure and generic procedure
4011 --       entities (for convenience in setting it), but is only tested
4012 --       for the function case.
4013 
4014 --    Returns_By_Ref (Flag90)
4015 --       Defined in function entities. Set if the function returns the result
4016 --       by reference, either because its return type is a by-reference-type
4017 --       or because the function explicitly uses the secondary stack.
4018 
4019 --    Returns_Limited_View (Flag134)
4020 --       Defined in function entities. Set if the return type of the function
4021 --       at the point of definition is a limited view. Used to handle the late
4022 --       freezing of the function when it is called in the current semantic
4023 --       unit while it is still unfrozen.
4024 
4025 --    Reverse_Bit_Order (Flag164) [base type only]
4026 --       Defined in all record type entities. Set if entity has a Bit_Order
4027 --       aspect (set by an aspect clause or attribute definition clause) that
4028 --       has reversed the order of bits from the default value. When this flag
4029 --       is set, a component clause must specify a set of bits entirely within
4030 --       a single storage unit (Ada 95) or within a single machine scalar (see
4031 --       Ada 2005 AI-133), or must occupy an integral number of storage units.
4032 
4033 --    Reverse_Storage_Order (Flag93) [base type only]
4034 --       Defined in all record and array type entities. Set if entity has a
4035 --       Scalar_Storage_Order aspect (set by an aspect clause or attribute
4036 --       definition clause) that has reversed the order of storage elements
4037 --       from the default value. When this flag is set for a record type,
4038 --       the Bit_Order aspect must be set to the same value (either explicitly
4039 --       or as the target default value).
4040 
4041 --    Rewritten_For_C (Flag287)
4042 --       Defined on functions that return a constrained array type, when
4043 --       Modify_Tree_For_C is set. Indicates that a procedure with an extra
4044 --       out parameter has been created for it, and calls must be rewritten as
4045 --       calls to the new procedure.
4046 
4047 --    RM_Size (Uint13)
4048 --       Defined in all type and subtype entities. Contains the value of
4049 --       type'Size as defined in the RM. See also the Esize field and
4050 --       and the description on "Handling of Type'Size Values". A value
4051 --       of zero in this field for a non-discrete type means that
4052 --       the front end has not yet determined the size value. For the
4053 --       case of a discrete type, this field is always set by the front
4054 --       end and zero is a legitimate value for a type with one value.
4055 
4056 --    Root_Type (synthesized)
4057 --       Applies to all type entities. For class-wide types, returns the root
4058 --       type of the class covered by the CW type, otherwise returns the
4059 --       ultimate derivation ancestor of the given type. This function
4060 --       preserves the view, i.e. the Root_Type of a partial view is the
4061 --       partial view of the ultimate ancestor, the Root_Type of a full view
4062 --       is the full view of the ultimate ancestor. Note that this function
4063 --       does not correspond exactly to the use of root type in the RM, since
4064 --       in the RM root type applies to a class of types, not to a type.
4065 
4066 --    Scalar_Range (Node20)
4067 --       Defined in all scalar types (including modular types, where the
4068 --       bounds are 0 .. modulus - 1). References a node in the tree that
4069 --       contains the bounds for the range. Note that this information
4070 --       could be obtained by rummaging around the tree, but it is more
4071 --       convenient to have it immediately at hand in the entity. The
4072 --       contents of Scalar_Range can either be an N_Subtype_Indication
4073 --       node (with a constraint), or a Range node, but not a simple
4074 --       subtype reference (a subtype is converted into a range).
4075 
4076 --    Scale_Value (Uint16)
4077 --       Defined in decimal fixed-point types and subtypes. Contains the scale
4078 --       for the type (i.e. the value of type'Scale = the number of decimal
4079 --       digits after the decimal point).
4080 
4081 --    Scope (Node3)
4082 --       Defined in all entities. Points to the entity for the scope (block,
4083 --       loop, subprogram, package etc.) in which the entity is declared.
4084 --       Since this field is in the base part of the entity node, the access
4085 --       routines for this field are in Sinfo. Note that for a child unit,
4086 --       the Scope will be the parent package, and for a root library unit,
4087 --       the Scope will be Standard.
4088 
4089 --    Scope_Depth (synthesized)
4090 --       Applies to program units, blocks, concurrent types and entries, and
4091 --       also to record types, i.e. to any entity that can appear on the scope
4092 --       stack. Yields the scope depth value, which for those entities other
4093 --       than records is simply the scope depth value, for record entities, it
4094 --       is the Scope_Depth of the record scope.
4095 
4096 --    Scope_Depth_Value (Uint22)
4097 --       Defined in program units, blocks, concurrent types, and entries.
4098 --       Indicates the number of scopes that statically enclose the declaration
4099 --       of the unit or type. Library units have a depth of zero. Note that
4100 --       record types can act as scopes but do NOT have this field set (see
4101 --       Scope_Depth above).
4102 
4103 --    Scope_Depth_Set (synthesized)
4104 --       Applies to a special predicate function that returns a Boolean value
4105 --       indicating whether or not the Scope_Depth field has been set. It is
4106 --       needed, since returns an invalid value in this case.
4107 
4108 --    Sec_Stack_Needed_For_Return (Flag167)
4109 --       Defined in scope entities (blocks, functions, procedures, tasks,
4110 --       entries). Set to True when secondary stack is used to hold the
4111 --       returned value of a function and thus should not be released on
4112 --       scope exit.
4113 
4114 --    Shadow_Entities (List14)
4115 --       Defined in package and generic package entities. Points to a list
4116 --       of entities that correspond to private types. For each private type
4117 --       a shadow entity is created that holds a copy of the private view.
4118 --       In regions of the program where the full views of these private
4119 --       entities are visible, the full view is copied into the entity that
4120 --       is normally used to hold the private view, but the shadow entity
4121 --       copy is unchanged. The shadow entities are then used to restore the
4122 --       original private views at the end of the region. This list is a
4123 --       standard format list (i.e. First (Shadow_Entities) is the first
4124 --       entry and subsequent entries are obtained using Next.
4125 
4126 --    Shared_Var_Procs_Instance (Node22)
4127 --       Defined in variables. Set non-Empty only if Is_Shared_Passive is
4128 --       set, in which case this is the entity for the associated instance of
4129 --       System.Shared_Storage.Shared_Var_Procs. See Exp_Smem for full details.
4130 
4131 --    Size_Check_Code (Node19)
4132 --       Defined in constants and variables. Normally Empty. Set if code is
4133 --       generated to check the size of the object. This field is used to
4134 --       suppress this code if a subsequent address clause is encountered.
4135 
4136 --    Size_Clause (synthesized)
4137 --       Applies to all entities. If a size clause is present in the rep
4138 --       item chain for an entity then the attribute definition clause node
4139 --       for the size clause is returned. Otherwise Size_Clause returns Empty
4140 --       if no item is present. Usually this is only meaningful if the flag
4141 --       Has_Size_Clause is set. This is because when the representation item
4142 --       chain is copied for a derived type, it can inherit a size clause that
4143 --       is not applicable to the entity.
4144 
4145 --    Size_Depends_On_Discriminant (Flag177)
4146 --       Defined in all entities for types and subtypes. Indicates that the
4147 --       size of the type depends on the value of one or more discriminants.
4148 --       Currently, this flag is only set for arrays which have one or more
4149 --       bounds depending on a discriminant value.
4150 
4151 --    Size_Known_At_Compile_Time (Flag92)
4152 --       Defined in all entities for types and subtypes. Indicates that the
4153 --       size of objects of the type is known at compile time. This flag is
4154 --       used to optimize some generated code sequences, and also to enable
4155 --       some error checks (e.g. disallowing component clauses on variable
4156 --       length objects). It is set conservatively (i.e. if it is True, the
4157 --       size is certainly known at compile time, if it is False, then the
4158 --       size may or may not be known at compile time, but the code will
4159 --       assume that it is not known). Note that the value may be known only
4160 --       to the back end, so the fact that this flag is set does not mean that
4161 --       the front end can access the value.
4162 
4163 --    Small_Value (Ureal21)
4164 --       Defined in fixed point types. Points to the universal real for the
4165 --       Small of the type, either as given in a representation clause, or
4166 --       as computed (as a power of two) by the compiler.
4167 
4168 --    SPARK_Aux_Pragma (Node41)
4169 --       Present in concurrent type, [generic] package spec and package body
4170 --       entities. For concurrent types and package specs it refers to the
4171 --       SPARK mode setting for the private part. This field points to the
4172 --       N_Pragma node that either appears in the private part or is inherited
4173 --       from the enclosing context. For package bodies, it refers to the SPARK
4174 --       mode of the elaboration sequence after the BEGIN. The fields points to
4175 --       the N_Pragma node that either appears in the statement sequence or is
4176 --       inherited from the enclosing context. In all cases, if the pragma is
4177 --       inherited, then the SPARK_Aux_Pragma_Inherited flag is set.
4178 
4179 --    SPARK_Aux_Pragma_Inherited (Flag266)
4180 --       Present in concurrent type, [generic] package spec and package body
4181 --       entities. Set if the SPARK_Aux_Pragma field points to a pragma that is
4182 --       inherited, rather than a local one.
4183 
4184 --    SPARK_Pragma (Node40)
4185 --       Present in concurrent type, entry, operator, [generic] package,
4186 --       package body, [generic] subprogram, subprogram body and variable
4187 --       entities. Points to the N_Pragma node that applies to the initial
4188 --       declaration or body. This is either set by a local SPARK_Mode pragma
4189 --       or is inherited from the context (from an outer scope for the spec
4190 --       case or from the spec for the body case). In the case where it is
4191 --       inherited the flag SPARK_Pragma_Inherited is set. Empty if no
4192 --       SPARK_Mode pragma is applicable.
4193 
4194 --    SPARK_Pragma_Inherited (Flag265)
4195 --       Present in concurrent type, entry, operator, [generic] package,
4196 --       package body, [generic] subprogram, subprogram body and variable
4197 --       entities. Set if the SPARK_Pragma attribute points to a pragma that is
4198 --       inherited, rather than a local one.
4199 
4200 --    Spec_Entity (Node19)
4201 --       Defined in package body entities. Points to corresponding package
4202 --       spec entity. Also defined in subprogram body parameters in the
4203 --       case where there is a separate spec, where this field references
4204 --       the corresponding parameter entities in the spec.
4205 
4206 --    SSO_Set_High_By_Default (Flag273) [base type only]
4207 --       Defined for record and array types. Set in the base type if a pragma
4208 --       Default_Scalar_Storage_Order (High_Order_First) was active at the time
4209 --       the record or array was declared and therefore applies to it.
4210 
4211 --    SSO_Set_Low_By_Default (Flag272) [base type only]
4212 --       Defined for record and array types. Set in the base type if a pragma
4213 --       Default_Scalar_Storage_Order (High_Order_First) was active at the time
4214 --       the record or array was declared and therefore applies to it.
4215 
4216 --    Static_Discrete_Predicate (List25)
4217 --       Defined in discrete types/subtypes with static predicates (with the
4218 --       two flags Has_Predicates and Has_Static_Predicate set). Set if the
4219 --       type/subtype has a static predicate. Points to a list of expression
4220 --       and N_Range nodes that represent the predicate in canonical form. The
4221 --       canonical form has entries sorted in ascending order, with duplicates
4222 --       eliminated, and adjacent ranges coalesced, so that there is always a
4223 --       gap in the values between successive entries. The entries in this list
4224 --       are fully analyzed and typed with the base type of the subtype. Note
4225 --       that all entries are static and have values within the subtype range.
4226 
4227 --    Static_Elaboration_Desired (Flag77)
4228 --       Defined in library-level packages. Set by the pragma of the same
4229 --       name, to indicate that static initialization must be attempted for
4230 --       all types declared in the package, and that a warning must be emitted
4231 --       for those types to which static initialization is not available.
4232 
4233 --    Static_Initialization (Node30)
4234 --       Defined in initialization procedures for types whose objects can be
4235 --       initialized statically. The value of this attribute is a positional
4236 --       aggregate whose components are compile-time static values. Used
4237 --       when available in object declarations to eliminate the call to the
4238 --       initialization procedure, and to minimize elaboration code. Note:
4239 --       This attribute uses the same field as Overridden_Operation, which is
4240 --       irrelevant in init_procs.
4241 
4242 --    Static_Real_Or_String_Predicate (Node25)
4243 --       Defined in real types/subtypes with static predicates (with the two
4244 --       flags Has_Predicates and Has_Static_Predicate set). Set if the type
4245 --       or subtype has a static predicate. Points to the return expression
4246 --       of the predicate function. This is the original expression given as
4247 --       the predicate except that occurrences of the type are replaced by
4248 --       occurrences of the formal parameter of the predicate function (note
4249 --       that the spec of this function including this formal parameter name
4250 --       is available from the Subprograms_For_Type field; it can be accessed
4251 --       as Predicate_Function (typ)). Also, in the case where a predicate is
4252 --       inherited, the expression is of the form:
4253 --
4254 --         xxxPredicate (typ2 (ent)) AND THEN expression
4255 --
4256 --       where typ2 is the type from which the predicate is inherited, ent is
4257 --       the entity for the current predicate function, and xxxPredicate is the
4258 --       inherited predicate (from typ2). Finally for a predicate that inherits
4259 --       from another predicate but does not add a predicate of its own, the
4260 --       expression may consist of the above xxxPredicate call on its own.
4261 
4262 --    Status_Flag_Or_Transient_Decl (Node15)
4263 --       Defined in variables and constants. Applies to objects that require
4264 --       special treatment by the finalization machinery, such as extended
4265 --       return results, IF and CASE expression results, and objects inside
4266 --       N_Expression_With_Actions nodes. The attribute contains the entity
4267 --       of a flag which specifies particular behavior over a region of code
4268 --       or the declaration of a "hook" object.
4269 --       In which case is it a flag, or a hook object???
4270 
4271 --    Storage_Size_Variable (Node26) [implementation base type only]
4272 --       Defined in access types and task type entities. This flag is set
4273 --       if a valid and effective pragma Storage_Size applies to the base
4274 --       type. Points to the entity for a variable that is created to
4275 --       hold the value given in a Storage_Size pragma for an access
4276 --       collection or a task type. Note that in the access type case,
4277 --       this field is defined only in the root type (since derived types
4278 --       share the same storage pool).
4279 
4280 --    Stored_Constraint (Elist23)
4281 --       Defined in entities that can have discriminants (concurrent types
4282 --       subtypes, record types and subtypes, private types and subtypes,
4283 --       limited private types and subtypes and incomplete types). Points
4284 --       to an element list containing the expressions for each of the
4285 --       stored discriminants for the record (sub)type.
4286 
4287 --    Stores_Attribute_Old_Prefix (Flag270)
4288 --       Defined in constants. Set when the constant has been generated to save
4289 --       the value of attribute 'Old's prefix.
4290 
4291 --    Strict_Alignment (Flag145) [implementation base type only]
4292 --       Defined in all type entities. Indicates that some containing part
4293 --       is either aliased or tagged. This prohibits packing the object
4294 --       tighter than its natural size and alignment.
4295 
4296 --    String_Literal_Length (Uint16)
4297 --       Defined in string literal subtypes (which are created to correspond
4298 --       to string literals in the program). Contains the length of the string
4299 --       literal.
4300 
4301 --    String_Literal_Low_Bound (Node18)
4302 --       Defined in string literal subtypes (which are created to correspond
4303 --       to string literals in the program). Contains an expression whose
4304 --       value represents the low bound of the literal. This is a copy of
4305 --       the low bound of the applicable index constraint if there is one,
4306 --       or a copy of the low bound of the index base type if not.
4307 
4308 --    Subprograms_For_Type (Elist29)
4309 --       Defined in all types. The list may contain the entities of the default
4310 --       initial condition procedure, invariant procedure, and the two versions
4311 --       of the predicate function.
4312 --
4313 --       Historical note: This attribute used to be a direct linked list of
4314 --       entities rather than an Elist. The Elist allows greater flexibility
4315 --       in inheritance of subprograms between views of the same type.
4316 
4317 --    Subps_Index (Uint24)
4318 --       Present in subprogram entries. Set if the subprogram contains nested
4319 --       subprograms, or is a subprogram nested within such a subprogram. Holds
4320 --       the index in the Exp_Unst.Subps table for the subprogram. Note that
4321 --       for the outer level subprogram, this is the starting index in the Subp
4322 --       table for the entries for this subprogram.
4323 
4324 --    Suppress_Elaboration_Warnings (Flag148)
4325 --       Defined in all entities, can be set only for subprogram entities and
4326 --       for variables. If this flag is set then Sem_Elab will not generate
4327 --       elaboration warnings for the subprogram or variable. Suppression of
4328 --       such warnings is automatic for subprograms for which elaboration
4329 --       checks are suppressed (without the need to set this flag), but the
4330 --       flag is also set for various internal entities (such as init procs)
4331 --       which are known not to generate any possible access before
4332 --       elaboration, and it is set on variables when a warning is given to
4333 --       avoid multiple elaboration warnings for the same variable.
4334 
4335 --    Suppress_Initialization (Flag105)
4336 --       Defined in all variable, type and subtype entities. If set for a base
4337 --       type, then the generation of initialization procedures is suppressed
4338 --       for the type. Any other implicit initialiation (e.g. from the use of
4339 --       pragma Initialize_Scalars) is also suppressed if this flag is set for
4340 --       either the subtype in question, or for the base type. For variables,
4341 --       this flag suppresses all implicit initialization for the object, even
4342 --       if the type would normally require initialization. Set by use of
4343 --       pragma Suppress_Initialization and also for internal entities where
4344 --       we know that no initialization is required. For example, enumeration
4345 --       image table entities set it.
4346 
4347 --    Suppress_Style_Checks (Flag165)
4348 --       Defined in all entities. Suppresses any style checks specifically
4349 --       associated with the given entity if set.
4350 
4351 --    Suppress_Value_Tracking_On_Call (Flag217)
4352 --       Defined in all entities. Set in a scope entity if value tracking is to
4353 --       be suppressed on any call within the scope. Used when an access to a
4354 --       local subprogram is computed, to deal with the possibility that this
4355 --       value may be passed around, and if used, may clobber a local variable.
4356 
4357 --    Task_Body_Procedure (Node25)
4358 --       Defined in task types and subtypes. Points to the entity for the task
4359 --       task body procedure (as further described in Exp_Ch9, task bodies are
4360 --       expanded into procedures). A convenient function to retrieve this
4361 --       field is Sem_Util.Get_Task_Body_Procedure.
4362 --
4363 --       The last sentence is odd??? Why not have Task_Body_Procedure go to the
4364 --       Underlying_Type of the Root_Type???
4365 
4366 --    Thunk_Entity (Node31)
4367 --       Defined in functions and procedures which have been classified as
4368 --       Is_Thunk. Set to the target entity called by the thunk.
4369 
4370 --    Treat_As_Volatile (Flag41)
4371 --       Defined in all type entities, and also in constants, components and
4372 --       variables. Set if this entity is to be treated as volatile for code
4373 --       generation purposes. Always set if Is_Volatile is set, but can also
4374 --       be set as a result of situations (such as address overlays) where
4375 --       the front end wishes to force volatile handling to inhibit aliasing
4376 --       optimization which might be legally ok, but is undesirable. Note
4377 --       that the backend always tests this flag rather than Is_Volatile.
4378 --       The front end tests Is_Volatile if it is concerned with legality
4379 --       checks associated with declared volatile variables, but if the test
4380 --       is for the purposes of suppressing optimizations, then the front
4381 --       end should test Treat_As_Volatile rather than Is_Volatile.
4382 --
4383 --       Note: before testing Treat_As_Volatile, consider whether it would
4384 --       be more appropriate to use Exp_Util.Is_Volatile_Reference instead,
4385 --       which catches more cases of volatile references.
4386 
4387 --    Type_High_Bound (synthesized)
4388 --       Applies to scalar types. Returns the tree node (Node_Id) that contains
4389 --       the high bound of a scalar type. The returned value is literal for a
4390 --       base type, but may be an expression in the case of scalar type with
4391 --       dynamic bounds. Note that in the case of a fixed point type, the high
4392 --       bound is in units of small, and is an integer.
4393 
4394 --    Type_Low_Bound (synthesized)
4395 --       Applies to scalar types. Returns the tree node (Node_Id) that contains
4396 --       the low bound of a scalar type. The returned value is literal for a
4397 --       base type, but may be an expression in the case of scalar type with
4398 --       dynamic bounds. Note that in the case of a fixed point type, the low
4399 --       bound is in units of small, and is an integer.
4400 
4401 --    Underlying_Full_View (Node19)
4402 --       Defined in private subtypes that are the completion of other private
4403 --       types, or in private types that are derived from private subtypes. If
4404 --       the full view of a private type T is derived from another private type
4405 --       with discriminants Td, the full view of T is also private, and there
4406 --       is no way to attach to it a further full view that would convey the
4407 --       structure of T to the backend. The Underlying_Full_View is an
4408 --       attribute of the full view that is a subtype of Td with the same
4409 --       constraint as the declaration for T. The declaration for this subtype
4410 --       is built at the point of the declaration of T, either as completion,
4411 --       or as a subtype declaration where the base type is private and has a
4412 --       private completion. If Td is already constrained, then its full view
4413 --       can serve directly as the full view of T.
4414 
4415 --    Underlying_Record_View (Node28)
4416 --       Defined in record types. Set for record types that are extensions of
4417 --       types with unknown discriminants, and also set for internally built
4418 --       underlying record views to reference its original record type. Record
4419 --       types that are extensions of types with unknown discriminants do not
4420 --       have a completion, but they cannot be used without having some
4421 --       discriminated view at hand. This view is a record type with the same
4422 --       structure, whose parent type is the full view of the parent in the
4423 --       original type extension.
4424 
4425 --    Underlying_Type (synthesized)
4426 --       Applies to all entities. This is the identity function except in the
4427 --       case where it is applied to an incomplete or private type, in which
4428 --       case it is the underlying type of the type declared by the completion,
4429 --       or Empty if the completion has not yet been encountered and analyzed.
4430 --
4431 --       Note: the reason this attribute applies to all entities, and not just
4432 --       types, is to legitimize code where Underlying_Type is applied to an
4433 --       entity which may or may not be a type, with the intent that if it is a
4434 --       type, its underlying type is taken.
4435 --
4436 --       Note also that the value of this attribute is interesting only after
4437 --       the full view of the parent type has been processed. If the parent
4438 --       type is declared in an enclosing package, the attribute will be non-
4439 --       trivial only after the full view of the type has been analyzed.
4440 
4441 --    Universal_Aliasing (Flag216) [implementation base type only]
4442 --       Defined in all type entities. Set to direct the back-end to avoid
4443 --       any optimizations based on type-based alias analysis for this type.
4444 --       Indicates that objects of this type can alias objects of any other
4445 --       types, which guarantees that any objects can be referenced through
4446 --       access types designating this type safely, whatever the actual type
4447 --       of these objects. In other words, the effect is as though access
4448 --       types designating this type were subject to No_Strict_Aliasing.
4449 
4450 --    Unset_Reference (Node16)
4451 --       Defined in variables and out parameters. This is normally Empty. It
4452 --       is set to point to an identifier that represents a reference to the
4453 --       entity before any value has been set. Only the first such reference
4454 --       is identified. This field is used to generate a warning message if
4455 --       necessary (see Sem_Warn.Check_Unset_Reference).
4456 
4457 --    Used_As_Generic_Actual (Flag222)
4458 --       Defined in all entities, set if the entity is used as an argument to
4459 --       a generic instantiation. Used to tune certain warning messages.
4460 
4461 --    Uses_Lock_Free (Flag188)
4462 --       Defined in protected type entities. Set to True when the Lock Free
4463 --       implementation is used for the protected type. This implemenatation is
4464 --       based on atomic transactions and doesn't require anymore the use of
4465 --       Protection object (see System.Tasking.Protected_Objects).
4466 
4467 --    Uses_Sec_Stack (Flag95)
4468 --       Defined in scope entities (block, entry, function, loop, procedure,
4469 --       task). Set to True when secondary stack is used in this scope and must
4470 --       be released on exit unless Sec_Stack_Needed_For_Return is set.
4471 
4472 --    Warnings_Off (Flag96)
4473 --       Defined in all entities. Set if a pragma Warnings (Off, entity-name)
4474 --       is used to suppress warnings for a given entity. It is also used by
4475 --       the compiler in some situations to kill spurious warnings. Note that
4476 --       clients should generally not test this flag directly, but instead
4477 --       use function Has_Warnings_Off.
4478 
4479 --    Warnings_Off_Used (Flag236)
4480 --       Defined in all entities. Can only be set if Warnings_Off is set. If
4481 --       set indicates that a warning was suppressed by the Warnings_Off flag,
4482 --       and Unmodified/Unreferenced would not have suppressed the warning.
4483 
4484 --    Warnings_Off_Used_Unmodified (Flag237)
4485 --       Defined in all entities. Can only be set if Warnings_Off is set and
4486 --       Has_Pragma_Unmodified is not set. If set indicates that a warning was
4487 --       suppressed by the Warnings_Off status but that pragma Unmodified
4488 --       would also have suppressed the warning.
4489 
4490 --    Warnings_Off_Used_Unreferenced (Flag238)
4491 --       Defined in all entities. Can only be set if Warnings_Off is set and
4492 --       Has_Pragma_Unreferenced is not set. If set indicates that a warning
4493 --       was suppressed by the Warnings_Off status but that pragma Unreferenced
4494 --       would also have suppressed the warning.
4495 
4496 --    Was_Hidden (Flag196)
4497 --       Defined in all entities. Used to save the value of the Is_Hidden
4498 --       attribute when the limited-view is installed (Ada 2005: AI-217).
4499 
4500 --    Wrapped_Entity (Node27)
4501 --       Defined in functions and procedures which have been classified as
4502 --       Is_Primitive_Wrapper. Set to the entity being wrapper.
4503 
4504 ---------------------------
4505 -- Renaming and Aliasing --
4506 ---------------------------
4507 
4508 --  Several entity attributes relate to renaming constructs, and to the use of
4509 --  different names to refer to the same entity. The following is a summary of
4510 --  these constructs and their prefered uses.
4511 
4512 --  There are three related attributes:
4513 
4514 --    Renamed_Entity
4515 --    Renamed_Object
4516 --    Alias
4517 
4518 --  They all overlap because they are supposed to apply to different entity
4519 --  kinds. They are semantically related, and have the following intended uses:
4520 
4521 --  a) Renamed_Entity appplies to entities in renaming declarations that rename
4522 --  an entity, so the value of the attribute IS an entity. This applies to
4523 --  generic renamings, package renamings, exception renamings, and subprograms
4524 --  renamings that rename a subprogram (rather than an attribute, an entry, a
4525 --  protected operation, etc).
4526 
4527 --  b) Alias applies to overloadable entities, and the value is an overloadable
4528 --  entity. So this is a subset of the previous one. We use the term Alias to
4529 --  cover both renamings and inherited operations, because both cases are
4530 --  handled in the same way when expanding a call. Namely the Alias of a given
4531 --  subprogram is the subprogram that will actually be called.
4532 
4533 --  Both a) and b) are set transitively, so that in fact it is not necessary to
4534 --  traverse chains of renamings when looking for the original entity: it's
4535 --  there in one step (this is done when analyzing renaming declarations other
4536 --  than object renamings in sem_ch8).
4537 
4538 --  c) Renamed_Object applies to constants and variables. Given that the name
4539 --  in an object renaming declaration is not necessarily an entity name, the
4540 --  value of the attribute is the tree for that name, eg AR (1).Comp. The case
4541 --  when that name is in fact an entity is not handled specially. This is why
4542 --  in a few cases we need to use a loop to trace a chain of object renamings
4543 --  where all of them happen to be entities. So:
4544 
4545 --    X : integer;
4546 --    Y : integer renames X;   -- renamed object is the identifier X
4547 --    Z : integer renames Y;   -- renamed object is the identifier Y
4548 
4549 --  The front-end does not store explicitly the fact that Z renames X.
4550 
4551 --------------------------------------
4552 -- Delayed Freezing and Elaboration --
4553 --------------------------------------
4554 
4555 --  The flag Has_Delayed_Freeze indicates that an entity carries an explicit
4556 --  freeze node, which appears later in the expanded tree.
4557 
4558 --  a) The flag is used by the front-end to trigger expansion actions
4559 --  which include the generation of that freeze node. Typically this happens at
4560 --  the end of the current compilation unit, or before the first subprogram
4561 --  body is encountered in the current unit. See files freeze and exp_ch13 for
4562 --  details on the actions triggered by a freeze node, which include the
4563 --  construction of initialization procedures and dispatch tables.
4564 
4565 --  b) The flag is used by the backend to defer elaboration of the entity until
4566 --  its freeze node is seen. In the absence of an explicit freeze node, an
4567 --  entity is frozen (and elaborated) at the point of declaration.
4568 
4569 --  For object declarations, the flag is set when an address clause for the
4570 --  object is encountered. Legality checks on the address expression only
4571 --  take place at the freeze point of the object.
4572 
4573 --  Most types have an explicit freeze node, because they cannot be elaborated
4574 --  until all representation and operational items that apply to them have been
4575 --  analyzed. Private types and incomplete types have the flag set as well, as
4576 --  do task and protected types.
4577 
4578 --  Implicit base types created for type derivations, as well as classwide
4579 --  types created for all tagged types, have the flag set.
4580 
4581 --  If a subprogram has an access parameter whose designated type is incomplete
4582 --  the subprogram has the flag set.
4583 
4584 ------------------
4585 -- Access Kinds --
4586 ------------------
4587 
4588 --  The following entity kinds are introduced by the corresponding type
4589 --  definitions:
4590 
4591 --    E_Access_Type,
4592 --    E_General_Access_Type,
4593 --    E_Access_Subprogram_Type,
4594 --    E_Anonymous_Access_Subprogram_Type,
4595 --    E_Access_Protected_Subprogram_Type,
4596 --    E_Anonymous_Access_Protected_Subprogram_Type
4597 --    E_Anonymous_Access_Type.
4598 
4599 --  E_Access_Subtype is for an access subtype created by a subtype
4600 --  declaration.
4601 
4602 --  In addition, we define the kind E_Allocator_Type to label allocators.
4603 --  This is because special resolution rules apply to this construct.
4604 --  Eventually the constructs are labeled with the access type imposed by
4605 --  the context. The backend should never see types with this Ekind.
4606 
4607 --  Similarly, the type E_Access_Attribute_Type is used as the initial kind
4608 --  associated with an access attribute. After resolution a specific access
4609 --  type will be established as determined by the context.
4610 
4611 --  Finally, the type Any_Access is used to label -null- during type
4612 --  resolution. Any_Access is also replaced by the context type after
4613 --  resolution.
4614 
4615 --------------------------------
4616 -- Classification of Entities --
4617 --------------------------------
4618 
4619 --  The classification of program entities which follows is a refinement of
4620 --  the list given in RM 3.1(1). E.g., separate entities denote subtypes of
4621 --  different type classes. Ada 95 entities include class wide types,
4622 --  protected types, subprogram types, generalized access types, generic
4623 --  formal derived types and generic formal packages.
4624 
4625 --  The order chosen for these kinds allows us to classify related entities
4626 --  so that they are contiguous. As a result, they do not appear in the
4627 --  exact same order as their order of first appearance in the LRM (For
4628 --  example, private types are listed before packages). The contiguity
4629 --  allows us to define useful subtypes (see below) such as type entities,
4630 --  overloaded entities, etc.
4631 
4632 --  Each entity (explicitly or implicitly declared) has a kind, which is
4633 --  a value of the following type:
4634 
4635    type Entity_Kind is (
4636 
4637       E_Void,
4638       --  The initial Ekind value for a newly created entity. Also used as the
4639       --  Ekind for Standard_Void_Type, a type entity in Standard used as a
4640       --  dummy type for the return type of a procedure (the reason we create
4641       --  this type is to share the circuits for performing overload resolution
4642       --  on calls).
4643 
4644       -------------
4645       -- Objects --
4646       -------------
4647 
4648       E_Component,
4649       --  Components of a record declaration, private declarations of
4650       --  protected objects.
4651 
4652       E_Constant,
4653       --  Constants created by an object declaration with a constant keyword
4654 
4655       E_Discriminant,
4656       --  A discriminant, created by the use of a discriminant in a type
4657       --  declaration.
4658 
4659       E_Loop_Parameter,
4660       --  A loop parameter created by a for loop
4661 
4662       E_Variable,
4663       --  Variables created by an object declaration with no constant keyword
4664 
4665       ------------------------
4666       -- Parameter Entities --
4667       ------------------------
4668 
4669       --  Parameters are also objects
4670 
4671       E_Out_Parameter,
4672       --  An out parameter of a subprogram or entry
4673 
4674       E_In_Out_Parameter,
4675       --  An in-out parameter of a subprogram or entry
4676 
4677       E_In_Parameter,
4678       --  An in parameter of a subprogram or entry
4679 
4680       --------------------------------
4681       -- Generic Parameter Entities --
4682       --------------------------------
4683 
4684       --  Generic parameters are also objects
4685 
4686       E_Generic_In_Out_Parameter,
4687       --  A generic in out parameter, created by the use of a generic in out
4688       --  parameter in a generic declaration.
4689 
4690       E_Generic_In_Parameter,
4691       --  A generic in parameter, created by the use of a generic in
4692       --  parameter in a generic declaration.
4693 
4694       -------------------
4695       -- Named Numbers --
4696       -------------------
4697 
4698       E_Named_Integer,
4699       --  Named numbers created by a number declaration with an integer value
4700 
4701       E_Named_Real,
4702       --  Named numbers created by a number declaration with a real value
4703 
4704       -----------------------
4705       -- Enumeration Types --
4706       -----------------------
4707 
4708       E_Enumeration_Type,
4709       --  Enumeration types, created by an enumeration type declaration
4710 
4711       E_Enumeration_Subtype,
4712       --  Enumeration subtypes, created by an explicit or implicit subtype
4713       --  declaration applied to an enumeration type or subtype.
4714 
4715       -------------------
4716       -- Numeric Types --
4717       -------------------
4718 
4719       E_Signed_Integer_Type,
4720       --  Signed integer type, used for the anonymous base type of the
4721       --  integer subtype created by an integer type declaration.
4722 
4723       E_Signed_Integer_Subtype,
4724       --  Signed integer subtype, created by either an integer subtype or
4725       --  integer type declaration (in the latter case an integer type is
4726       --  created for the base type, and this is the first named subtype).
4727 
4728       E_Modular_Integer_Type,
4729       --  Modular integer type, used for the anonymous base type of the
4730       --  integer subtype created by a modular integer type declaration.
4731 
4732       E_Modular_Integer_Subtype,
4733       --  Modular integer subtype, created by either an modular subtype
4734       --  or modular type declaration (in the latter case a modular type
4735       --  is created for the base type, and this is the first named subtype).
4736 
4737       E_Ordinary_Fixed_Point_Type,
4738       --  Ordinary fixed type, used for the anonymous base type of the fixed
4739       --  subtype created by an ordinary fixed point type declaration.
4740 
4741       E_Ordinary_Fixed_Point_Subtype,
4742       --  Ordinary fixed point subtype, created by either an ordinary fixed
4743       --  point subtype or ordinary fixed point type declaration (in the
4744       --  latter case a fixed point type is created for the base type, and
4745       --  this is the first named subtype).
4746 
4747       E_Decimal_Fixed_Point_Type,
4748       --  Decimal fixed type, used for the anonymous base type of the decimal
4749       --  fixed subtype created by an ordinary fixed point type declaration.
4750 
4751       E_Decimal_Fixed_Point_Subtype,
4752       --  Decimal fixed point subtype, created by either a decimal fixed point
4753       --  subtype or decimal fixed point type declaration (in the latter case
4754       --  a fixed point type is created for the base type, and this is the
4755       --  first named subtype).
4756 
4757       E_Floating_Point_Type,
4758       --  Floating point type, used for the anonymous base type of the
4759       --  floating point subtype created by a floating point type declaration.
4760 
4761       E_Floating_Point_Subtype,
4762 
4763       --  Floating point subtype, created by either a floating point subtype
4764       --  or floating point type declaration (in the latter case a floating
4765       --  point type is created for the base type, and this is the first
4766       --  named subtype).
4767 
4768       ------------------
4769       -- Access Types --
4770       ------------------
4771 
4772       E_Access_Type,
4773       --  An access type created by an access type declaration with no all
4774       --  keyword present. Note that the predefined type Any_Access, which
4775       --  has E_Access_Type Ekind, is used to label NULL in the upwards pass
4776       --  of type analysis, to be replaced by the true access type in the
4777       --  downwards resolution pass.
4778 
4779       E_Access_Subtype,
4780       --  An access subtype created by a subtype declaration for any access
4781       --  type (whether or not it is a general access type).
4782 
4783       E_Access_Attribute_Type,
4784       --  An access type created for an access attribute (one of 'Access,
4785       --  'Unrestricted_Access, or Unchecked_Access).
4786 
4787       E_Allocator_Type,
4788       --  A special internal type used to label allocators and references to
4789       --  objects using 'Reference. This is needed because special resolution
4790       --  rules apply to these constructs. On the resolution pass, this type
4791       --  is almost always replaced by the actual access type, but if the
4792       --  context does not provide one, the backend will see Allocator_Type
4793       --  itself (which will already have been frozen).
4794 
4795       E_General_Access_Type,
4796       --  An access type created by an access type declaration with the all
4797       --  keyword present.
4798 
4799       E_Access_Subprogram_Type,
4800       --  An access to subprogram type, created by an access to subprogram
4801       --  declaration.
4802 
4803       E_Anonymous_Access_Subprogram_Type,
4804       --  An anonymous access to subprogram type, created by an access to
4805       --  subprogram declaration, or generated for a current instance of
4806       --  a type name appearing within a component definition that has an
4807       --  anonymous access to subprogram type.
4808 
4809       E_Access_Protected_Subprogram_Type,
4810       --  An access to a protected subprogram, created by the corresponding
4811       --  declaration. Values of such a type denote both a protected object
4812       --  and a protected operation within, and have different compile-time
4813       --  and run-time properties than other access to subprograms.
4814 
4815       E_Anonymous_Access_Protected_Subprogram_Type,
4816       --  An anonymous access to protected subprogram type, created by an
4817       --  access to subprogram declaration.
4818 
4819       E_Anonymous_Access_Type,
4820       --  An anonymous access type created by an access parameter or access
4821       --  discriminant.
4822 
4823       ---------------------
4824       -- Composite Types --
4825       ---------------------
4826 
4827       E_Array_Type,
4828       --  An array type created by an array type declaration. Includes all
4829       --  cases of arrays, except for string types.
4830 
4831       E_Array_Subtype,
4832       --  An array subtype, created by an explicit array subtype declaration,
4833       --  or the use of an anonymous array subtype.
4834 
4835       E_String_Literal_Subtype,
4836       --  A special string subtype, used only to describe the type of a string
4837       --  literal (will always be one dimensional, with literal bounds).
4838 
4839       E_Class_Wide_Type,
4840       --  A class wide type, created by any tagged type declaration (i.e. if
4841       --  a tagged type is declared, the corresponding class type is always
4842       --  created, using this Ekind value).
4843 
4844       E_Class_Wide_Subtype,
4845       --  A subtype of a class wide type, created by a subtype declaration
4846       --  used to declare a subtype of a class type.
4847 
4848       E_Record_Type,
4849       --  A record type, created by a record type declaration
4850 
4851       E_Record_Subtype,
4852       --  A record subtype, created by a record subtype declaration
4853 
4854       E_Record_Type_With_Private,
4855       --  Used for types defined by a private extension declaration,
4856       --  and for tagged private types. Includes the fields for both
4857       --  private types and for record types (with the sole exception of
4858       --  Corresponding_Concurrent_Type which is obviously not needed). This
4859       --  entity is considered to be both a record type and a private type.
4860 
4861       E_Record_Subtype_With_Private,
4862       --  A subtype of a type defined by a private extension declaration
4863 
4864       E_Private_Type,
4865       --  A private type, created by a private type declaration that has
4866       --  neither the keyword limited nor the keyword tagged.
4867 
4868       E_Private_Subtype,
4869       --  A subtype of a private type, created by a subtype declaration used
4870       --  to declare a subtype of a private type.
4871 
4872       E_Limited_Private_Type,
4873       --  A limited private type, created by a private type declaration that
4874       --  has the keyword limited, but not the keyword tagged.
4875 
4876       E_Limited_Private_Subtype,
4877       --  A subtype of a limited private type, created by a subtype declaration
4878       --  used to declare a subtype of a limited private type.
4879 
4880       E_Incomplete_Type,
4881       --  An incomplete type, created by an incomplete type declaration
4882 
4883       E_Incomplete_Subtype,
4884       --  An incomplete subtype, created by a subtype declaration where the
4885       --  subtype mark denotes an incomplete type.
4886 
4887       E_Task_Type,
4888       --  A task type, created by a task type declaration. An entity with this
4889       --  Ekind is also created to describe the anonymous type of a task that
4890       --  is created by a single task declaration.
4891 
4892       E_Task_Subtype,
4893       --  A subtype of a task type, created by a subtype declaration used to
4894       --  declare a subtype of a task type.
4895 
4896       E_Protected_Type,
4897       --  A protected type, created by a protected type declaration. An entity
4898       --  with this Ekind is also created to describe the anonymous type of
4899       --  a protected object created by a single protected declaration.
4900 
4901       E_Protected_Subtype,
4902       --  A subtype of a protected type, created by a subtype declaration used
4903       --  to declare a subtype of a protected type.
4904 
4905       -----------------
4906       -- Other Types --
4907       -----------------
4908 
4909       E_Exception_Type,
4910       --  The type of an exception created by an exception declaration
4911 
4912       E_Subprogram_Type,
4913       --  This is the designated type of an Access_To_Subprogram. Has type and
4914       --  signature like a subprogram entity, so can appear in calls, which
4915       --  are resolved like regular calls, except that such an entity is not
4916       --  overloadable.
4917 
4918       ---------------------------
4919       -- Overloadable Entities --
4920       ---------------------------
4921 
4922       E_Enumeration_Literal,
4923       --  An enumeration literal, created by the use of the literal in an
4924       --  enumeration type definition.
4925 
4926       E_Function,
4927       --  A function, created by a function declaration or a function body
4928       --  that acts as its own declaration.
4929 
4930       E_Operator,
4931       --  A predefined operator, appearing in Standard, or an implicitly
4932       --  defined concatenation operator created whenever an array is declared.
4933       --  We do not make normal derived operators explicit in the tree, but the
4934       --  concatenation operators are made explicit.
4935 
4936       E_Procedure,
4937       --  A procedure, created by a procedure declaration or a procedure
4938       --  body that acts as its own declaration.
4939 
4940       E_Abstract_State,
4941       --  A state abstraction. Used to designate entities introduced by aspect
4942       --  or pragma Abstract_State. The entity carries the various properties
4943       --  of the state.
4944 
4945       E_Entry,
4946       --  An entry, created by an entry declaration in a task or protected
4947       --  object.
4948 
4949       --------------------
4950       -- Other Entities --
4951       --------------------
4952 
4953       E_Entry_Family,
4954       --  An entry family, created by an entry family declaration in a
4955       --  task or protected type definition.
4956 
4957       E_Block,
4958       --  A block identifier, created by an explicit or implicit label on
4959       --  a block or declare statement.
4960 
4961       E_Entry_Index_Parameter,
4962       --  An entry index parameter created by an entry index specification
4963       --  for the body of a protected entry family.
4964 
4965       E_Exception,
4966       --  An exception created by an exception declaration. The exception
4967       --  itself uses E_Exception for the Ekind, the implicit type that is
4968       --  created to represent its type uses the Ekind E_Exception_Type.
4969 
4970       E_Generic_Function,
4971       --  A generic function. This is the entity for a generic function
4972       --  created by a generic subprogram declaration.
4973 
4974       E_Generic_Procedure,
4975       --  A generic function. This is the entity for a generic procedure
4976       --  created by a generic subprogram declaration.
4977 
4978       E_Generic_Package,
4979       --  A generic package, this is the entity for a generic package created
4980       --  by a generic package declaration.
4981 
4982       E_Label,
4983       --  The defining entity for a label. Note that this is created by the
4984       --  implicit label declaration, not the occurrence of the label itself,
4985       --  which is simply a direct name referring to the label.
4986 
4987       E_Loop,
4988       --  A loop identifier, created by an explicit or implicit label on a
4989       --  loop statement.
4990 
4991       E_Return_Statement,
4992       --  A dummy entity created for each return statement. Used to hold
4993       --  information about the return statement (what it applies to) and in
4994       --  rules checking. For example, a simple_return_statement that applies
4995       --  to an extended_return_statement cannot have an expression; this
4996       --  requires putting the E_Return_Statement entity for the
4997       --  extended_return_statement on the scope stack.
4998 
4999       E_Package,
5000       --  A package, created by a package declaration
5001 
5002       E_Package_Body,
5003       --  A package body. This entity serves only limited functions, since
5004       --  most semantic analysis uses the package entity (E_Package). However
5005       --  there are some attributes that are significant for the body entity.
5006       --  For example, collection of exception handlers.
5007 
5008       E_Protected_Object,
5009       --  A protected object, created by an object declaration that declares
5010       --  an object of a protected type.
5011 
5012       E_Protected_Body,
5013       --  A protected body. This entity serves almost no function, since all
5014       --  semantic analysis uses the protected entity (E_Protected_Type).
5015 
5016       E_Task_Body,
5017       --  A task body. This entity serves almost no function, since all
5018       --  semantic analysis uses the protected entity (E_Task_Type).
5019 
5020       E_Subprogram_Body
5021       --  A subprogram body. Used when a subprogram has a separate declaration
5022       --  to represent the entity for the body. This entity serves almost no
5023       --  function, since all semantic analysis uses the subprogram entity
5024       --  for the declaration (E_Function or E_Procedure).
5025    );
5026 
5027    for Entity_Kind'Size use 8;
5028    --  The data structures in Atree assume this
5029 
5030    --------------------------
5031    -- Subtype Declarations --
5032    --------------------------
5033 
5034    --  The above entities are arranged so that they can be conveniently grouped
5035    --  into subtype ranges. Note that for each of the xxx_Kind ranges defined
5036    --  below, there is a corresponding Is_xxx (or for types, Is_xxx_Type)
5037    --  predicate which is to be used in preference to direct range tests using
5038    --  the subtype name. However, the subtype names are available for direct
5039    --  use, e.g. as choices in case statements.
5040 
5041    subtype Access_Kind                 is Entity_Kind range
5042        E_Access_Type ..
5043    --  E_Access_Subtype
5044    --  E_Access_Attribute_Type
5045    --  E_Allocator_Type
5046    --  E_General_Access_Type
5047    --  E_Access_Subprogram_Type
5048    --  E_Anonymous_Access_Subprogram_Type
5049    --  E_Access_Protected_Subprogram_Type
5050    --  E_Anonymous_Access_Protected_Subprogram_Type
5051        E_Anonymous_Access_Type;
5052 
5053    subtype Access_Subprogram_Kind      is Entity_Kind range
5054        E_Access_Subprogram_Type ..
5055    --  E_Anonymous_Access_Subprogram_Type
5056    --  E_Access_Protected_Subprogram_Type
5057        E_Anonymous_Access_Protected_Subprogram_Type;
5058 
5059    subtype Access_Protected_Kind       is Entity_Kind range
5060       E_Access_Protected_Subprogram_Type ..
5061       E_Anonymous_Access_Protected_Subprogram_Type;
5062 
5063    subtype Aggregate_Kind              is Entity_Kind range
5064        E_Array_Type ..
5065    --  E_Array_Subtype
5066    --  E_String_Literal_Subtype
5067    --  E_Class_Wide_Type
5068    --  E_Class_Wide_Subtype
5069    --  E_Record_Type
5070        E_Record_Subtype;
5071 
5072    subtype Array_Kind                  is Entity_Kind range
5073        E_Array_Type ..
5074    --  E_Array_Subtype
5075        E_String_Literal_Subtype;
5076 
5077    subtype Assignable_Kind             is Entity_Kind range
5078        E_Variable ..
5079    --  E_Out_Parameter
5080        E_In_Out_Parameter;
5081 
5082    subtype Class_Wide_Kind             is Entity_Kind range
5083        E_Class_Wide_Type ..
5084        E_Class_Wide_Subtype;
5085 
5086    subtype Composite_Kind              is Entity_Kind range
5087        E_Array_Type ..
5088    --  E_Array_Subtype
5089    --  E_String_Literal_Subtype
5090    --  E_Class_Wide_Type
5091    --  E_Class_Wide_Subtype
5092    --  E_Record_Type
5093    --  E_Record_Subtype
5094    --  E_Record_Type_With_Private
5095    --  E_Record_Subtype_With_Private
5096    --  E_Private_Type
5097    --  E_Private_Subtype
5098    --  E_Limited_Private_Type
5099    --  E_Limited_Private_Subtype
5100    --  E_Incomplete_Type
5101    --  E_Incomplete_Subtype
5102    --  E_Task_Type
5103    --  E_Task_Subtype,
5104    --  E_Protected_Type,
5105        E_Protected_Subtype;
5106 
5107    subtype Concurrent_Kind             is Entity_Kind range
5108        E_Task_Type ..
5109    --  E_Task_Subtype,
5110    --  E_Protected_Type,
5111        E_Protected_Subtype;
5112 
5113    subtype Concurrent_Body_Kind        is Entity_Kind range
5114        E_Protected_Body ..
5115        E_Task_Body;
5116 
5117    subtype Decimal_Fixed_Point_Kind    is Entity_Kind range
5118        E_Decimal_Fixed_Point_Type ..
5119        E_Decimal_Fixed_Point_Subtype;
5120 
5121    subtype Digits_Kind                 is Entity_Kind range
5122        E_Decimal_Fixed_Point_Type ..
5123    --  E_Decimal_Fixed_Point_Subtype
5124    --  E_Floating_Point_Type
5125        E_Floating_Point_Subtype;
5126 
5127    subtype Discrete_Kind               is Entity_Kind range
5128        E_Enumeration_Type ..
5129    --  E_Enumeration_Subtype
5130    --  E_Signed_Integer_Type
5131    --  E_Signed_Integer_Subtype
5132    --  E_Modular_Integer_Type
5133        E_Modular_Integer_Subtype;
5134 
5135    subtype Discrete_Or_Fixed_Point_Kind is Entity_Kind range
5136        E_Enumeration_Type ..
5137    --  E_Enumeration_Subtype
5138    --  E_Signed_Integer_Type
5139    --  E_Signed_Integer_Subtype
5140    --  E_Modular_Integer_Type
5141    --  E_Modular_Integer_Subtype
5142    --  E_Ordinary_Fixed_Point_Type
5143    --  E_Ordinary_Fixed_Point_Subtype
5144    --  E_Decimal_Fixed_Point_Type
5145        E_Decimal_Fixed_Point_Subtype;
5146 
5147    subtype Elementary_Kind             is Entity_Kind range
5148        E_Enumeration_Type ..
5149    --  E_Enumeration_Subtype
5150    --  E_Signed_Integer_Type
5151    --  E_Signed_Integer_Subtype
5152    --  E_Modular_Integer_Type
5153    --  E_Modular_Integer_Subtype
5154    --  E_Ordinary_Fixed_Point_Type
5155    --  E_Ordinary_Fixed_Point_Subtype
5156    --  E_Decimal_Fixed_Point_Type
5157    --  E_Decimal_Fixed_Point_Subtype
5158    --  E_Floating_Point_Type
5159    --  E_Floating_Point_Subtype
5160    --  E_Access_Type
5161    --  E_Access_Subtype
5162    --  E_Access_Attribute_Type
5163    --  E_Allocator_Type
5164    --  E_General_Access_Type
5165    --  E_Access_Subprogram_Type
5166    --  E_Access_Protected_Subprogram_Type
5167    --  E_Anonymous_Access_Subprogram_Type
5168    --  E_Anonymous_Access_Protected_Subprogram_Type
5169        E_Anonymous_Access_Type;
5170 
5171    subtype Enumeration_Kind            is Entity_Kind range
5172        E_Enumeration_Type ..
5173        E_Enumeration_Subtype;
5174 
5175    subtype Entry_Kind                  is Entity_Kind range
5176        E_Entry ..
5177        E_Entry_Family;
5178 
5179    subtype Fixed_Point_Kind            is Entity_Kind range
5180        E_Ordinary_Fixed_Point_Type ..
5181    --  E_Ordinary_Fixed_Point_Subtype
5182    --  E_Decimal_Fixed_Point_Type
5183        E_Decimal_Fixed_Point_Subtype;
5184 
5185    subtype Float_Kind                  is Entity_Kind range
5186        E_Floating_Point_Type ..
5187        E_Floating_Point_Subtype;
5188 
5189    subtype Formal_Kind                 is Entity_Kind range
5190        E_Out_Parameter ..
5191    --  E_In_Out_Parameter
5192        E_In_Parameter;
5193 
5194    subtype Formal_Object_Kind          is Entity_Kind range
5195        E_Generic_In_Out_Parameter ..
5196        E_Generic_In_Parameter;
5197 
5198    subtype Generic_Subprogram_Kind     is Entity_Kind range
5199        E_Generic_Function ..
5200        E_Generic_Procedure;
5201 
5202    subtype Generic_Unit_Kind           is Entity_Kind range
5203        E_Generic_Function ..
5204    --  E_Generic_Procedure
5205        E_Generic_Package;
5206 
5207    subtype Incomplete_Kind             is Entity_Kind range
5208        E_Incomplete_Type ..
5209        E_Incomplete_Subtype;
5210 
5211    subtype Incomplete_Or_Private_Kind  is Entity_Kind range
5212        E_Record_Type_With_Private ..
5213    --  E_Record_Subtype_With_Private
5214    --  E_Private_Type
5215    --  E_Private_Subtype
5216    --  E_Limited_Private_Type
5217    --  E_Limited_Private_Subtype
5218    --  E_Incomplete_Type
5219        E_Incomplete_Subtype;
5220 
5221    subtype Integer_Kind                is Entity_Kind range
5222        E_Signed_Integer_Type ..
5223    --  E_Signed_Integer_Subtype
5224    --  E_Modular_Integer_Type
5225        E_Modular_Integer_Subtype;
5226 
5227    subtype Modular_Integer_Kind        is Entity_Kind range
5228        E_Modular_Integer_Type ..
5229        E_Modular_Integer_Subtype;
5230 
5231    subtype Named_Kind                  is Entity_Kind range
5232        E_Named_Integer ..
5233        E_Named_Real;
5234 
5235    subtype Numeric_Kind                is Entity_Kind range
5236        E_Signed_Integer_Type ..
5237    --  E_Signed_Integer_Subtype
5238    --  E_Modular_Integer_Type
5239    --  E_Modular_Integer_Subtype
5240    --  E_Ordinary_Fixed_Point_Type
5241    --  E_Ordinary_Fixed_Point_Subtype
5242    --  E_Decimal_Fixed_Point_Type
5243    --  E_Decimal_Fixed_Point_Subtype
5244    --  E_Floating_Point_Type
5245        E_Floating_Point_Subtype;
5246 
5247    subtype Object_Kind                 is Entity_Kind range
5248        E_Component ..
5249    --  E_Constant
5250    --  E_Discriminant
5251    --  E_Loop_Parameter
5252    --  E_Variable
5253    --  E_Out_Parameter
5254    --  E_In_Out_Parameter
5255    --  E_In_Parameter
5256    --  E_Generic_In_Out_Parameter
5257        E_Generic_In_Parameter;
5258 
5259    subtype Ordinary_Fixed_Point_Kind   is Entity_Kind range
5260        E_Ordinary_Fixed_Point_Type ..
5261        E_Ordinary_Fixed_Point_Subtype;
5262 
5263    subtype Overloadable_Kind           is Entity_Kind range
5264        E_Enumeration_Literal ..
5265    --  E_Function
5266    --  E_Operator
5267    --  E_Procedure
5268    --  E_Abstract_State
5269        E_Entry;
5270 
5271    subtype Private_Kind                is Entity_Kind range
5272        E_Record_Type_With_Private ..
5273    --  E_Record_Subtype_With_Private
5274    --  E_Private_Type
5275    --  E_Private_Subtype
5276    --  E_Limited_Private_Type
5277        E_Limited_Private_Subtype;
5278 
5279    subtype Protected_Kind              is Entity_Kind range
5280        E_Protected_Type ..
5281        E_Protected_Subtype;
5282 
5283    subtype Real_Kind                   is Entity_Kind range
5284        E_Ordinary_Fixed_Point_Type ..
5285    --  E_Ordinary_Fixed_Point_Subtype
5286    --  E_Decimal_Fixed_Point_Type
5287    --  E_Decimal_Fixed_Point_Subtype
5288    --  E_Floating_Point_Type
5289        E_Floating_Point_Subtype;
5290 
5291    subtype Record_Kind                 is Entity_Kind range
5292        E_Class_Wide_Type ..
5293    --  E_Class_Wide_Subtype
5294    --  E_Record_Type
5295    --  E_Record_Subtype
5296    --  E_Record_Type_With_Private
5297        E_Record_Subtype_With_Private;
5298 
5299    subtype Scalar_Kind                 is Entity_Kind range
5300        E_Enumeration_Type ..
5301    --  E_Enumeration_Subtype
5302    --  E_Signed_Integer_Type
5303    --  E_Signed_Integer_Subtype
5304    --  E_Modular_Integer_Type
5305    --  E_Modular_Integer_Subtype
5306    --  E_Ordinary_Fixed_Point_Type
5307    --  E_Ordinary_Fixed_Point_Subtype
5308    --  E_Decimal_Fixed_Point_Type
5309    --  E_Decimal_Fixed_Point_Subtype
5310    --  E_Floating_Point_Type
5311        E_Floating_Point_Subtype;
5312 
5313    subtype Subprogram_Kind             is Entity_Kind range
5314        E_Function ..
5315    --  E_Operator
5316        E_Procedure;
5317 
5318    subtype Signed_Integer_Kind         is Entity_Kind range
5319        E_Signed_Integer_Type ..
5320        E_Signed_Integer_Subtype;
5321 
5322    subtype Task_Kind                   is Entity_Kind range
5323        E_Task_Type ..
5324        E_Task_Subtype;
5325 
5326    subtype Type_Kind                   is Entity_Kind range
5327        E_Enumeration_Type ..
5328    --  E_Enumeration_Subtype
5329    --  E_Signed_Integer_Type
5330    --  E_Signed_Integer_Subtype
5331    --  E_Modular_Integer_Type
5332    --  E_Modular_Integer_Subtype
5333    --  E_Ordinary_Fixed_Point_Type
5334    --  E_Ordinary_Fixed_Point_Subtype
5335    --  E_Decimal_Fixed_Point_Type
5336    --  E_Decimal_Fixed_Point_Subtype
5337    --  E_Floating_Point_Type
5338    --  E_Floating_Point_Subtype
5339    --  E_Access_Type
5340    --  E_Access_Subtype
5341    --  E_Access_Attribute_Type
5342    --  E_Allocator_Type,
5343    --  E_General_Access_Type
5344    --  E_Access_Subprogram_Type,
5345    --  E_Access_Protected_Subprogram_Type
5346    --  E_Anonymous_Access_Subprogram_Type
5347    --  E_Anonymous_Access_Protected_Subprogram_Type
5348    --  E_Anonymous_Access_Type
5349    --  E_Array_Type
5350    --  E_Array_Subtype
5351    --  E_String_Literal_Subtype
5352    --  E_Class_Wide_Subtype
5353    --  E_Class_Wide_Type
5354    --  E_Record_Type
5355    --  E_Record_Subtype
5356    --  E_Record_Type_With_Private
5357    --  E_Record_Subtype_With_Private
5358    --  E_Private_Type
5359    --  E_Private_Subtype
5360    --  E_Limited_Private_Type
5361    --  E_Limited_Private_Subtype
5362    --  E_Incomplete_Type
5363    --  E_Incomplete_Subtype
5364    --  E_Task_Type
5365    --  E_Task_Subtype
5366    --  E_Protected_Type
5367    --  E_Protected_Subtype
5368    --  E_Exception_Type
5369        E_Subprogram_Type;
5370 
5371    --------------------------------------------------------
5372    -- Description of Defined Attributes for Entity_Kinds --
5373    --------------------------------------------------------
5374 
5375    --  For each enumeration value defined in Entity_Kind we list all the
5376    --  attributes defined in Einfo which can legally be applied to an entity
5377    --  of that kind. The implementation of the attribute functions (and for
5378    --  non-synthesized attributes, of the corresponding set procedures) are
5379    --  in the Einfo body.
5380 
5381    --  The following attributes are defined in all entities
5382 
5383    --    Ekind                               (Ekind)
5384 
5385    --    Chars                               (Name1)
5386    --    Next_Entity                         (Node2)
5387    --    Scope                               (Node3)
5388    --    Homonym                             (Node4)
5389    --    Etype                               (Node5)
5390    --    First_Rep_Item                      (Node6)
5391    --    Freeze_Node                         (Node7)
5392    --    Associated_Entity                   (Node37)
5393 
5394    --    Address_Taken                       (Flag104)
5395    --    Can_Never_Be_Null                   (Flag38)
5396    --    Checks_May_Be_Suppressed            (Flag31)
5397    --    Debug_Info_Off                      (Flag166)
5398    --    Has_Convention_Pragma               (Flag119)
5399    --    Has_Delayed_Aspects                 (Flag200)
5400    --    Has_Delayed_Freeze                  (Flag18)
5401    --    Has_Fully_Qualified_Name            (Flag173)
5402    --    Has_Gigi_Rep_Item                   (Flag82)
5403    --    Has_Homonym                         (Flag56)
5404    --    Has_Pragma_Elaborate_Body           (Flag150)
5405    --    Has_Pragma_Inline                   (Flag157)
5406    --    Has_Pragma_Inline_Always            (Flag230)
5407    --    Has_Pragma_No_Inline                (Flag201)
5408    --    Has_Pragma_Pure                     (Flag203)
5409    --    Has_Pragma_Pure_Function            (Flag179)
5410    --    Has_Pragma_Thread_Local_Storage     (Flag169)
5411    --    Has_Pragma_Unmodified               (Flag233)
5412    --    Has_Pragma_Unreferenced             (Flag180)
5413    --    Has_Pragma_Unused                   (Flag294)
5414    --    Has_Private_Declaration             (Flag155)
5415    --    Has_Qualified_Name                  (Flag161)
5416    --    Has_Stream_Size_Clause              (Flag184)
5417    --    Has_Unknown_Discriminants           (Flag72)
5418    --    Has_Xref_Entry                      (Flag182)
5419    --    In_Private_Part                     (Flag45)
5420    --    Is_Ada_2005_Only                    (Flag185)
5421    --    Is_Ada_2012_Only                    (Flag199)
5422    --    Is_Bit_Packed_Array                 (Flag122)  (base type only)
5423    --    Is_Aliased                          (Flag15)
5424    --    Is_Character_Type                   (Flag63)
5425    --    Is_Checked_Ghost_Entity             (Flag277)
5426    --    Is_Child_Unit                       (Flag73)
5427    --    Is_Compilation_Unit                 (Flag149)
5428    --    Is_Descendant_Of_Address            (Flag223)
5429    --    Is_Discrim_SO_Function              (Flag176)
5430    --    Is_Discriminant_Check_Function      (Flag264)
5431    --    Is_Dispatch_Table_Entity            (Flag234)
5432    --    Is_Dispatching_Operation            (Flag6)
5433    --    Is_Entry_Formal                     (Flag52)
5434    --    Is_Exported                         (Flag99)
5435    --    Is_First_Subtype                    (Flag70)
5436    --    Is_Formal_Subprogram                (Flag111)
5437    --    Is_Generic_Instance                 (Flag130)
5438    --    Is_Generic_Type                     (Flag13)
5439    --    Is_Hidden                           (Flag57)
5440    --    Is_Hidden_Open_Scope                (Flag171)
5441    --    Is_Ignored_Ghost_Entity             (Flag278)
5442    --    Is_Immediately_Visible              (Flag7)
5443    --    Is_Implementation_Defined           (Flag254)
5444    --    Is_Imported                         (Flag24)
5445    --    Is_Inlined                          (Flag11)
5446    --    Is_Internal                         (Flag17)
5447    --    Is_Itype                            (Flag91)
5448    --    Is_Known_Non_Null                   (Flag37)
5449    --    Is_Known_Null                       (Flag204)
5450    --    Is_Known_Valid                      (Flag170)
5451    --    Is_Limited_Composite                (Flag106)
5452    --    Is_Limited_Record                   (Flag25)
5453    --    Is_Obsolescent                      (Flag153)
5454    --    Is_Package_Body_Entity              (Flag160)
5455    --    Is_Packed_Array_Impl_Type           (Flag138)
5456    --    Is_Potentially_Use_Visible          (Flag9)
5457    --    Is_Preelaborated                    (Flag59)
5458    --    Is_Primitive_Wrapper                (Flag195)
5459    --    Is_Public                           (Flag10)
5460    --    Is_Pure                             (Flag44)
5461    --    Is_Remote_Call_Interface            (Flag62)
5462    --    Is_Remote_Types                     (Flag61)
5463    --    Is_Renaming_Of_Object               (Flag112)
5464    --    Is_Shared_Passive                   (Flag60)
5465    --    Is_Statically_Allocated             (Flag28)
5466    --    Is_Static_Type                      (Flag281)
5467    --    Is_Tagged_Type                      (Flag55)
5468    --    Is_Thunk                            (Flag225)
5469    --    Is_Trivial_Subprogram               (Flag235)
5470    --    Is_Unchecked_Union                  (Flag117)
5471    --    Is_Unimplemented                    (Flag284)
5472    --    Is_Visible_Formal                   (Flag206)
5473    --    Kill_Elaboration_Checks             (Flag32)
5474    --    Kill_Range_Checks                   (Flag33)
5475    --    Low_Bound_Tested                    (Flag205)
5476    --    Materialize_Entity                  (Flag168)
5477    --    Needs_Debug_Info                    (Flag147)
5478    --    Never_Set_In_Source                 (Flag115)
5479    --    No_Return                           (Flag113)
5480    --    Overlays_Constant                   (Flag243)
5481    --    Referenced                          (Flag156)
5482    --    Referenced_As_LHS                   (Flag36)
5483    --    Referenced_As_Out_Parameter         (Flag227)
5484    --    Suppress_Elaboration_Warnings       (Flag148)
5485    --    Suppress_Style_Checks               (Flag165)
5486    --    Suppress_Value_Tracking_On_Call     (Flag217)
5487    --    Used_As_Generic_Actual              (Flag222)
5488    --    Warnings_Off                        (Flag96)
5489    --    Warnings_Off_Used                   (Flag236)
5490    --    Warnings_Off_Used_Unmodified        (Flag237)
5491    --    Warnings_Off_Used_Unreferenced      (Flag238)
5492    --    Was_Hidden                          (Flag196)
5493 
5494    --    Declaration_Node                    (synth)
5495    --    Has_Foreign_Convention              (synth)
5496    --    Is_Dynamic_Scope                    (synth)
5497    --    Is_Ghost_Entity                     (synth)
5498    --    Is_Standard_Character_Type          (synth)
5499    --    Is_Standard_String_Type             (synth)
5500    --    Underlying_Type                     (synth)
5501    --    all classification attributes       (synth)
5502 
5503    --  The following list of access functions applies to all entities for
5504    --  types and subtypes. References to this list appear subsequently as
5505    --  as "(plus type attributes)" for each appropriate Entity_Kind.
5506 
5507    --    Associated_Node_For_Itype           (Node8)
5508    --    Class_Wide_Type                     (Node9)
5509    --    Full_View                           (Node11)
5510    --    Esize                               (Uint12)
5511    --    RM_Size                             (Uint13)
5512    --    Alignment                           (Uint14)
5513    --    Pending_Access_Types                (Elist15)
5514    --    Related_Expression                  (Node24)
5515    --    Current_Use_Clause                  (Node27)
5516    --    Subprograms_For_Type                (Elist29)
5517    --    Derived_Type_Link                   (Node31)
5518    --    No_Tagged_Streams_Pragma            (Node32)
5519    --    Linker_Section_Pragma               (Node33)
5520    --    Anonymous_Master                    (Node35)
5521 
5522    --    Depends_On_Private                  (Flag14)
5523    --    Disable_Controlled                  (Flag253)
5524    --    Discard_Names                       (Flag88)
5525    --    Finalize_Storage_Only               (Flag158)  (base type only)
5526    --    From_Limited_With                   (Flag159)
5527    --    Has_Aliased_Components              (Flag135)  (base type only)
5528    --    Has_Alignment_Clause                (Flag46)
5529    --    Has_Atomic_Components               (Flag86)   (base type only)
5530    --    Has_Completion_In_Body              (Flag71)
5531    --    Has_Complex_Representation          (Flag140)  (base type only)
5532    --    Has_Constrained_Partial_View        (Flag187)
5533    --    Has_Controlled_Component            (Flag43)   (base type only)
5534    --    Has_Default_Aspect                  (Flag39)   (base type only)
5535    --    Has_Default_Init_Cond               (Flag3)    (base type only)
5536    --    Has_Delayed_Rep_Aspects             (Flag261)
5537    --    Has_Discriminants                   (Flag5)
5538    --    Has_Dynamic_Predicate_Aspect        (Flag258)
5539    --    Has_Independent_Components          (Flag34)   (base type only)
5540    --    Has_Inheritable_Invariants          (Flag248)  (base type only)
5541    --    Has_Inherited_Default_Init_Cond     (Flag133)  (base type only)
5542    --    Has_Inherited_Invariants            (Flag291)  (base type only)
5543    --    Has_Non_Standard_Rep                (Flag75)   (base type only)
5544    --    Has_Object_Size_Clause              (Flag172)
5545    --    Has_Own_Invariants                  (Flag232)  (base type only)
5546    --    Has_Pragma_Preelab_Init             (Flag221)
5547    --    Has_Pragma_Unreferenced_Objects     (Flag212)
5548    --    Has_Predicates                      (Flag250)
5549    --    Has_Primitive_Operations            (Flag120)  (base type only)
5550    --    Has_Protected                       (Flag271)  (base type only)
5551    --    Has_Size_Clause                     (Flag29)
5552    --    Has_Specified_Layout                (Flag100)  (base type only)
5553    --    Has_Specified_Stream_Input          (Flag190)
5554    --    Has_Specified_Stream_Output         (Flag191)
5555    --    Has_Specified_Stream_Read           (Flag192)
5556    --    Has_Specified_Stream_Write          (Flag193)
5557    --    Has_Static_Predicate                (Flag269)
5558    --    Has_Static_Predicate_Aspect         (Flag259)
5559    --    Has_Task                            (Flag30)   (base type only)
5560    --    Has_Timing_Event                    (Flag289)  (base type only)
5561    --    Has_Unchecked_Union                 (Flag123)  (base type only)
5562    --    Has_Volatile_Components             (Flag87)   (base type only)
5563    --    In_Use                              (Flag8)
5564    --    Is_Abstract_Type                    (Flag146)
5565    --    Is_Asynchronous                     (Flag81)
5566    --    Is_Atomic                           (Flag85)
5567    --    Is_Constr_Subt_For_U_Nominal        (Flag80)
5568    --    Is_Constr_Subt_For_UN_Aliased       (Flag141)
5569    --    Is_Controlled                       (Flag42)   (base type only)
5570    --    Is_Eliminated                       (Flag124)
5571    --    Is_Frozen                           (Flag4)
5572    --    Is_Generic_Actual_Type              (Flag94)
5573    --    Is_Independent                      (Flag268)
5574    --    Is_Non_Static_Subtype               (Flag109)
5575    --    Is_Packed                           (Flag51)   (base type only)
5576    --    Is_Private_Composite                (Flag107)
5577    --    Is_RACW_Stub_Type                   (Flag244)
5578    --    Is_Unsigned_Type                    (Flag144)
5579    --    Is_Volatile                         (Flag16)
5580    --    Is_Volatile_Full_Access             (Flag285)
5581    --    Itype_Printed                       (Flag202)  (itypes only)
5582    --    Known_To_Have_Preelab_Init          (Flag207)
5583    --    May_Inherit_Delayed_Rep_Aspects     (Flag262)
5584    --    Must_Be_On_Byte_Boundary            (Flag183)
5585    --    Must_Have_Preelab_Init              (Flag208)
5586    --    Optimize_Alignment_Space            (Flag241)
5587    --    Optimize_Alignment_Time             (Flag242)
5588    --    Partial_View_Has_Unknown_Discr      (Flag280)
5589    --    Size_Depends_On_Discriminant        (Flag177)
5590    --    Size_Known_At_Compile_Time          (Flag92)
5591    --    Strict_Alignment                    (Flag145)  (base type only)
5592    --    Suppress_Initialization             (Flag105)
5593    --    Treat_As_Volatile                   (Flag41)
5594    --    Universal_Aliasing                  (Flag216)  (impl base type only)
5595 
5596    --    Alignment_Clause                    (synth)
5597    --    Base_Type                           (synth)
5598    --    Default_Init_Cond_Procedure         (synth)
5599    --    Has_Invariants                      (synth)
5600    --    Implementation_Base_Type            (synth)
5601    --    Invariant_Procedure                 (synth)
5602    --    Is_Access_Protected_Subprogram_Type (synth)
5603    --    Is_Atomic_Or_VFA                    (synth)
5604    --    Is_Controlled_Active                (synth)
5605    --    Partial_Invariant_Procedure         (synth)
5606    --    Predicate_Function                  (synth)
5607    --    Predicate_Function_M                (synth)
5608    --    Root_Type                           (synth)
5609    --    Size_Clause                         (synth)
5610 
5611    ------------------------------------------
5612    -- Applicable attributes by entity kind --
5613    ------------------------------------------
5614 
5615    --  E_Abstract_State
5616    --    Refinement_Constituents             (Elist8)
5617    --    Part_Of_Constituents                (Elist10)
5618    --    Body_References                     (Elist16)
5619    --    Non_Limited_View                    (Node19)
5620    --    Encapsulating_State                 (Node32)
5621    --    From_Limited_With                   (Flag159)
5622    --    Has_Visible_Refinement              (Flag263)
5623    --    Has_Non_Limited_View                (synth)
5624    --    Has_Non_Null_Visible_Refinement     (synth)
5625    --    Has_Null_Visible_Refinement         (synth)
5626    --    Is_External_State                   (synth)
5627    --    Is_Null_State                       (synth)
5628    --    Is_Synchronized_State               (synth)
5629 
5630    --  E_Access_Protected_Subprogram_Type
5631    --    Equivalent_Type                     (Node18)
5632    --    Directly_Designated_Type            (Node20)
5633    --    Needs_No_Actuals                    (Flag22)
5634    --    Can_Use_Internal_Rep                (Flag229)
5635    --    (plus type attributes)
5636 
5637    --  E_Access_Subprogram_Type
5638    --    Equivalent_Type                     (Node18)   (remote types only)
5639    --    Directly_Designated_Type            (Node20)
5640    --    Needs_No_Actuals                    (Flag22)
5641    --    Original_Access_Type                (Node28)
5642    --    Can_Use_Internal_Rep                (Flag229)
5643    --    (plus type attributes)
5644 
5645    --  E_Access_Type
5646    --  E_Access_Subtype
5647    --    Master_Id                           (Node17)
5648    --    Directly_Designated_Type            (Node20)
5649    --    Associated_Storage_Pool             (Node22)   (base type only)
5650    --    Finalization_Master                 (Node23)   (base type only)
5651    --    Storage_Size_Variable               (Node26)   (base type only)
5652    --    Has_Pragma_Controlled               (Flag27)   (base type only)
5653    --    Has_Storage_Size_Clause             (Flag23)   (base type only)
5654    --    Is_Access_Constant                  (Flag69)
5655    --    Is_Local_Anonymous_Access           (Flag194)
5656    --    Is_Pure_Unit_Access_Type            (Flag189)
5657    --    No_Pool_Assigned                    (Flag131)  (base type only)
5658    --    No_Strict_Aliasing                  (Flag136)  (base type only)
5659    --    Is_Param_Block_Component_Type       (Flag215)  (base type only)
5660    --    (plus type attributes)
5661 
5662    --  E_Access_Attribute_Type
5663    --    Directly_Designated_Type            (Node20)
5664    --    (plus type attributes)
5665 
5666    --  E_Allocator_Type
5667    --    Directly_Designated_Type            (Node20)
5668    --    (plus type attributes)
5669 
5670    --  E_Anonymous_Access_Subprogram_Type
5671    --  E_Anonymous_Access_Protected_Subprogram_Type
5672    --    Directly_Designated_Type            (Node20)
5673    --    Storage_Size_Variable               (Node26)   ??? is this needed ???
5674    --    Can_Use_Internal_Rep                (Flag229)
5675    --    (plus type attributes)
5676 
5677    --  E_Anonymous_Access_Type
5678    --    Directly_Designated_Type            (Node20)
5679    --    Finalization_Master                 (Node23)
5680    --    Storage_Size_Variable               (Node26)   ??? is this needed ???
5681    --    (plus type attributes)
5682 
5683    --  E_Array_Type
5684    --  E_Array_Subtype
5685    --    First_Index                         (Node17)
5686    --    Default_Aspect_Component_Value      (Node19)   (base type only)
5687    --    Component_Type                      (Node20)   (base type only)
5688    --    Original_Array_Type                 (Node21)
5689    --    Component_Size                      (Uint22)   (base type only)
5690    --    Packed_Array_Impl_Type              (Node23)
5691    --    Related_Array_Object                (Node25)
5692    --    Component_Alignment                 (special)  (base type only)
5693    --    Has_Component_Size_Clause           (Flag68)   (base type only)
5694    --    Has_Pragma_Pack                     (Flag121)  (impl base type only)
5695    --    Is_Constrained                      (Flag12)
5696    --    Reverse_Storage_Order               (Flag93)   (base type only)
5697    --    SSO_Set_High_By_Default             (Flag273)  (base type only)
5698    --    SSO_Set_Low_By_Default              (Flag272)  (base type only)
5699    --    Next_Index                          (synth)
5700    --    Number_Dimensions                   (synth)
5701    --    (plus type attributes)
5702 
5703    --  E_Block
5704    --    Block_Node                          (Node11)
5705    --    First_Entity                        (Node17)
5706    --    Last_Entity                         (Node20)
5707    --    Scope_Depth_Value                   (Uint22)
5708    --    Entry_Cancel_Parameter              (Node23)
5709    --    Contains_Ignored_Ghost_Code         (Flag279)
5710    --    Delay_Cleanups                      (Flag114)
5711    --    Discard_Names                       (Flag88)
5712    --    Has_Master_Entity                   (Flag21)
5713    --    Has_Nested_Block_With_Handler       (Flag101)
5714    --    Is_Exception_Handler                (Flag286)
5715    --    Sec_Stack_Needed_For_Return         (Flag167)
5716    --    Uses_Sec_Stack                      (Flag95)
5717    --    Scope_Depth                         (synth)
5718 
5719    --  E_Class_Wide_Type
5720    --  E_Class_Wide_Subtype
5721    --    Direct_Primitive_Operations         (Elist10)
5722    --    Cloned_Subtype                      (Node16)   (subtype case only)
5723    --    First_Entity                        (Node17)
5724    --    Equivalent_Type                     (Node18)   (always Empty for type)
5725    --    Non_Limited_View                    (Node19)
5726    --    Last_Entity                         (Node20)
5727    --    SSO_Set_High_By_Default             (Flag273)  (base type only)
5728    --    SSO_Set_Low_By_Default              (Flag272)  (base type only)
5729    --    First_Component                     (synth)
5730    --    First_Component_Or_Discriminant     (synth)
5731    --    Has_Non_Limited_View                (synth)
5732    --    (plus type attributes)
5733 
5734    --  E_Component
5735    --    Normalized_First_Bit                (Uint8)
5736    --    Current_Value                       (Node9)    (always Empty)
5737    --    Normalized_Position_Max             (Uint10)
5738    --    Component_Bit_Offset                (Uint11)
5739    --    Esize                               (Uint12)
5740    --    Component_Clause                    (Node13)
5741    --    Normalized_Position                 (Uint14)
5742    --    DT_Entry_Count                      (Uint15)
5743    --    Entry_Formal                        (Node16)
5744    --    Prival                              (Node17)
5745    --    Renamed_Object                      (Node18)   (always Empty)
5746    --    Discriminant_Checking_Func          (Node20)
5747    --    Original_Record_Component           (Node22)
5748    --    DT_Offset_To_Top_Func               (Node25)
5749    --    Related_Type                        (Node27)
5750    --    Has_Biased_Representation           (Flag139)
5751    --    Has_Per_Object_Constraint           (Flag154)
5752    --    Is_Atomic                           (Flag85)
5753    --    Is_Independent                      (Flag268)
5754    --    Is_Return_Object                    (Flag209)
5755    --    Is_Tag                              (Flag78)
5756    --    Is_Volatile                         (Flag16)
5757    --    Is_Volatile_Full_Access             (Flag285)
5758    --    Treat_As_Volatile                   (Flag41)
5759    --    Is_Atomic_Or_VFA                    (synth)
5760    --    Next_Component                      (synth)
5761    --    Next_Component_Or_Discriminant      (synth)
5762 
5763    --  E_Constant
5764    --  E_Loop_Parameter
5765    --    Current_Value                       (Node9)    (always Empty)
5766    --    Discriminal_Link                    (Node10)
5767    --    Full_View                           (Node11)
5768    --    Esize                               (Uint12)
5769    --    Extra_Accessibility                 (Node13)   (constants only)
5770    --    Alignment                           (Uint14)
5771    --    Status_Flag_Or_Transient_Decl       (Node15)   (constants only)
5772    --    Actual_Subtype                      (Node17)
5773    --    Renamed_Object                      (Node18)
5774    --    Size_Check_Code                     (Node19)   (constants only)
5775    --    Prival_Link                         (Node20)   (privals only)
5776    --    Interface_Name                      (Node21)   (constants only)
5777    --    Related_Type                        (Node27)   (constants only)
5778    --    Initialization_Statements           (Node28)
5779    --    BIP_Initialization_Call             (Node29)
5780    --    Last_Aggregate_Assignment           (Node30)
5781    --    Activation_Record_Component         (Node31)
5782    --    Encapsulating_State                 (Node32)   (constants only)
5783    --    Linker_Section_Pragma               (Node33)
5784    --    Contract                            (Node34)   (constants only)
5785    --    Has_Alignment_Clause                (Flag46)
5786    --    Has_Atomic_Components               (Flag86)
5787    --    Has_Biased_Representation           (Flag139)
5788    --    Has_Completion                      (Flag26)   (constants only)
5789    --    Has_Independent_Components          (Flag34)
5790    --    Has_Size_Clause                     (Flag29)
5791    --    Has_Thunks                          (Flag228)  (constants only)
5792    --    Has_Volatile_Components             (Flag87)
5793    --    Is_Atomic                           (Flag85)
5794    --    Is_Eliminated                       (Flag124)
5795    --    Is_Independent                      (Flag268)
5796    --    Is_Processed_Transient              (Flag252)  (constants only)
5797    --    Is_Return_Object                    (Flag209)
5798    --    Is_True_Constant                    (Flag163)
5799    --    Is_Uplevel_Referenced_Entity        (Flag283)
5800    --    Is_Volatile                         (Flag16)
5801    --    Is_Volatile_Full_Access             (Flag285)
5802    --    Optimize_Alignment_Space            (Flag241)  (constants only)
5803    --    Optimize_Alignment_Time             (Flag242)  (constants only)
5804    --    Stores_Attribute_Old_Prefix         (Flag270)  (constants only)
5805    --    Treat_As_Volatile                   (Flag41)
5806    --    Address_Clause                      (synth)
5807    --    Alignment_Clause                    (synth)
5808    --    Is_Atomic_Or_VFA                    (synth)
5809    --    Size_Clause                         (synth)
5810 
5811    --  E_Decimal_Fixed_Point_Type
5812    --  E_Decimal_Fixed_Subtype
5813    --    Scale_Value                         (Uint16)
5814    --    Digits_Value                        (Uint17)
5815    --    Scalar_Range                        (Node20)
5816    --    Delta_Value                         (Ureal18)
5817    --    Small_Value                         (Ureal21)
5818    --    Static_Real_Or_String_Predicate     (Node25)
5819    --    Has_Machine_Radix_Clause            (Flag83)
5820    --    Machine_Radix_10                    (Flag84)
5821    --    Aft_Value                           (synth)
5822    --    Type_Low_Bound                      (synth)
5823    --    Type_High_Bound                     (synth)
5824    --    (plus type attributes)
5825 
5826    --  E_Discriminant
5827    --    Normalized_First_Bit                (Uint8)
5828    --    Current_Value                       (Node9)    (always Empty)
5829    --    Normalized_Position_Max             (Uint10)
5830    --    Component_Bit_Offset                (Uint11)
5831    --    Esize                               (Uint12)
5832    --    Component_Clause                    (Node13)
5833    --    Normalized_Position                 (Uint14)
5834    --    Discriminant_Number                 (Uint15)
5835    --    Discriminal                         (Node17)
5836    --    Renamed_Object                      (Node18)   (always Empty)
5837    --    Corresponding_Discriminant          (Node19)
5838    --    Discriminant_Default_Value          (Node20)
5839    --    Original_Record_Component           (Node22)
5840    --    CR_Discriminant                     (Node23)
5841    --    Is_Completely_Hidden                (Flag103)
5842    --    Is_Return_Object                    (Flag209)
5843    --    Next_Component_Or_Discriminant      (synth)
5844    --    Next_Discriminant                   (synth)
5845    --    Next_Stored_Discriminant            (synth)
5846 
5847    --  E_Entry
5848    --  E_Entry_Family
5849    --    Protected_Body_Subprogram           (Node11)
5850    --    Barrier_Function                    (Node12)
5851    --    Postconditions_Proc                 (Node14)
5852    --    Entry_Parameters_Type               (Node15)
5853    --    First_Entity                        (Node17)
5854    --    Alias                               (Node18)   (for entry only. Empty)
5855    --    Last_Entity                         (Node20)
5856    --    Accept_Address                      (Elist21)
5857    --    Scope_Depth_Value                   (Uint22)
5858    --    Protection_Object                   (Node23)   (protected kind)
5859    --    Contract_Wrapper                    (Node25)
5860    --    Extra_Formals                       (Node28)
5861    --    Contract                            (Node34)
5862    --    SPARK_Pragma                        (Node40)   (protected kind)
5863    --    Needs_No_Actuals                    (Flag22)
5864    --    Uses_Sec_Stack                      (Flag95)
5865    --    Default_Expressions_Processed       (Flag108)
5866    --    Entry_Accepted                      (Flag152)
5867    --    Sec_Stack_Needed_For_Return         (Flag167)
5868    --    Has_Expanded_Contract               (Flag240)
5869    --    SPARK_Pragma_Inherited              (Flag265)  (protected kind)
5870    --    Address_Clause                      (synth)
5871    --    Entry_Index_Type                    (synth)
5872    --    First_Formal                        (synth)
5873    --    First_Formal_With_Extras            (synth)
5874    --    Last_Formal                         (synth)
5875    --    Number_Formals                      (synth)
5876    --    Scope_Depth                         (synth)
5877 
5878    --  E_Entry_Index_Parameter
5879    --    Entry_Index_Constant                (Node18)
5880 
5881    --  E_Enumeration_Literal
5882    --    Enumeration_Pos                     (Uint11)
5883    --    Enumeration_Rep                     (Uint12)
5884    --    Alias                               (Node18)
5885    --    Enumeration_Rep_Expr                (Node22)
5886    --    Next_Literal                        (synth)
5887 
5888    --  E_Enumeration_Type
5889    --  E_Enumeration_Subtype
5890    --    Lit_Strings                         (Node16)   (root type only)
5891    --    First_Literal                       (Node17)
5892    --    Lit_Indexes                         (Node18)   (root type only)
5893    --    Default_Aspect_Value                (Node19)   (base type only)
5894    --    Scalar_Range                        (Node20)
5895    --    Enum_Pos_To_Rep                     (Node23)   (type only)
5896    --    Static_Discrete_Predicate           (List25)
5897    --    Has_Biased_Representation           (Flag139)
5898    --    Has_Contiguous_Rep                  (Flag181)
5899    --    Has_Enumeration_Rep_Clause          (Flag66)
5900    --    Has_Pragma_Ordered                  (Flag198)  (base type only)
5901    --    Nonzero_Is_True                     (Flag162)  (base type only)
5902    --    No_Predicate_On_Actual              (Flag275)
5903    --    No_Dynamic_Predicate_On_Actual      (Flag276)
5904    --    Type_Low_Bound                      (synth)
5905    --    Type_High_Bound                     (synth)
5906    --    (plus type attributes)
5907 
5908    --  E_Exception
5909    --    Esize                               (Uint12)
5910    --    Alignment                           (Uint14)
5911    --    Renamed_Entity                      (Node18)
5912    --    Register_Exception_Call             (Node20)
5913    --    Interface_Name                      (Node21)
5914    --    Discard_Names                       (Flag88)
5915    --    Is_Raised                           (Flag224)
5916 
5917    --  E_Exception_Type
5918    --    Equivalent_Type                     (Node18)
5919    --    (plus type attributes)
5920 
5921    --  E_Floating_Point_Type
5922    --  E_Floating_Point_Subtype
5923    --    Digits_Value                        (Uint17)
5924    --    Float_Rep                           (Uint10)   (Float_Rep_Kind)
5925    --    Default_Aspect_Value                (Node19)   (base type only)
5926    --    Scalar_Range                        (Node20)
5927    --    Static_Real_Or_String_Predicate     (Node25)
5928    --    Machine_Emax_Value                  (synth)
5929    --    Machine_Emin_Value                  (synth)
5930    --    Machine_Mantissa_Value              (synth)
5931    --    Machine_Radix_Value                 (synth)
5932    --    Model_Emin_Value                    (synth)
5933    --    Model_Epsilon_Value                 (synth)
5934    --    Model_Mantissa_Value                (synth)
5935    --    Model_Small_Value                   (synth)
5936    --    Safe_Emax_Value                     (synth)
5937    --    Safe_First_Value                    (synth)
5938    --    Safe_Last_Value                     (synth)
5939    --    Type_Low_Bound                      (synth)
5940    --    Type_High_Bound                     (synth)
5941    --    (plus type attributes)
5942 
5943    --  E_Function
5944    --  E_Generic_Function
5945    --    Mechanism                           (Uint8)    (Mechanism_Type)
5946    --    Renaming_Map                        (Uint9)
5947    --    Handler_Records                     (List10)   (non-generic case only)
5948    --    Protected_Body_Subprogram           (Node11)
5949    --    Next_Inlined_Subprogram             (Node12)
5950    --    Elaboration_Entity                  (Node13)   (not implicit /=)
5951    --    Postconditions_Proc                 (Node14)   (non-generic case only)
5952    --    DT_Position                         (Uint15)
5953    --    DTC_Entity                          (Node16)
5954    --    First_Entity                        (Node17)
5955    --    Alias                               (Node18)   (non-generic case only)
5956    --    Renamed_Entity                      (Node18)   (generic case only)
5957    --    Extra_Accessibility_Of_Result       (Node19)   (non-generic case only)
5958    --    Last_Entity                         (Node20)
5959    --    Interface_Name                      (Node21)
5960    --    Scope_Depth_Value                   (Uint22)
5961    --    Generic_Renamings                   (Elist23)  (for an instance)
5962    --    Inner_Instances                     (Elist23)  (generic case only)
5963    --    Protection_Object                   (Node23)   (for concurrent kind)
5964    --    Subps_Index                         (Uint24)   (non-generic case only)
5965    --    Interface_Alias                     (Node25)
5966    --    Overridden_Operation                (Node26)
5967    --    Wrapped_Entity                      (Node27)   (non-generic case only)
5968    --    Extra_Formals                       (Node28)
5969    --    Corresponding_Equality              (Node30)   (implicit /= only)
5970    --    Thunk_Entity                        (Node31)   (thunk case only)
5971    --    Corresponding_Procedure             (Node32)   (generate C code only)
5972    --    Linker_Section_Pragma               (Node33)
5973    --    Contract                            (Node34)
5974    --    Import_Pragma                       (Node35)   (non-generic case only)
5975    --    Class_Wide_Preconds                 (List38)
5976    --    Class_Wide_Postconds                (List39)
5977    --    SPARK_Pragma                        (Node40)
5978    --    Original_Protected_Subprogram       (Node41)
5979    --    Body_Needed_For_SAL                 (Flag40)
5980    --    Contains_Ignored_Ghost_Code         (Flag279)
5981    --    Default_Expressions_Processed       (Flag108)
5982    --    Delay_Cleanups                      (Flag114)
5983    --    Delay_Subprogram_Descriptors        (Flag50)
5984    --    Discard_Names                       (Flag88)
5985    --    Elaboration_Entity_Required         (Flag174)
5986    --    Has_Completion                      (Flag26)
5987    --    Has_Controlling_Result              (Flag98)
5988    --    Has_Expanded_Contract               (Flag240)  (non-generic case only)
5989    --    Has_Master_Entity                   (Flag21)
5990    --    Has_Missing_Return                  (Flag142)
5991    --    Has_Nested_Block_With_Handler       (Flag101)
5992    --    Has_Nested_Subprogram               (Flag282)
5993    --    Has_Out_Or_In_Out_Parameter         (Flag110)
5994    --    Has_Recursive_Call                  (Flag143)
5995    --    Is_Abstract_Subprogram              (Flag19)   (non-generic case only)
5996    --    Is_Called                           (Flag102)  (non-generic case only)
5997    --    Is_Constructor                      (Flag76)
5998    --    Is_Default_Init_Cond_Procedure      (Flag132)  (non-generic case only)
5999    --    Is_Discrim_SO_Function              (Flag176)
6000    --    Is_Discriminant_Check_Function      (Flag264)
6001    --    Is_Eliminated                       (Flag124)
6002    --    Is_Generic_Actual_Subprogram        (Flag274)  (non-generic case only)
6003    --    Is_Hidden_Non_Overridden_Subpgm     (Flag2)    (non-generic case only)
6004    --    Is_Inlined_Always                   (Flag1)    (non-generic case only)
6005    --    Is_Instantiated                     (Flag126)  (generic case only)
6006    --    Is_Intrinsic_Subprogram             (Flag64)
6007    --    Is_Invariant_Procedure              (Flag257)  (non-generic case only)
6008    --    Is_Machine_Code_Subprogram          (Flag137)  (non-generic case only)
6009    --    Is_Partial_Invariant_Procedure      (Flag292)  (non-generic case only)
6010    --    Is_Predicate_Function               (Flag255)  (non-generic case only)
6011    --    Is_Predicate_Function_M             (Flag256)  (non-generic case only)
6012    --    Is_Primitive                        (Flag218)
6013    --    Is_Primitive_Wrapper                (Flag195)  (non-generic case only)
6014    --    Is_Private_Descendant               (Flag53)
6015    --    Is_Private_Primitive                (Flag245)  (non-generic case only)
6016    --    Is_Pure                             (Flag44)
6017    --    Is_Visible_Lib_Unit                 (Flag116)
6018    --    Needs_No_Actuals                    (Flag22)
6019    --    Requires_Overriding                 (Flag213)  (non-generic case only)
6020    --    Return_Present                      (Flag54)
6021    --    Returns_By_Ref                      (Flag90)
6022    --    Returns_Limited_View                (Flag134)  (non-generic case only)
6023    --    Rewritten_For_C                     (Flag287)  (generate C code only)
6024    --    Sec_Stack_Needed_For_Return         (Flag167)
6025    --    SPARK_Pragma_Inherited              (Flag265)
6026    --    Uses_Sec_Stack                      (Flag95)
6027    --    Address_Clause                      (synth)
6028    --    First_Formal                        (synth)
6029    --    First_Formal_With_Extras            (synth)
6030    --    Last_Formal                         (synth)
6031    --    Number_Formals                      (synth)
6032    --    Scope_Depth                         (synth)
6033 
6034    --  E_General_Access_Type
6035    --    Master_Id                           (Node17)
6036    --    Directly_Designated_Type            (Node20)
6037    --    Associated_Storage_Pool             (Node22)   (root type only)
6038    --    Finalization_Master                 (Node23)   (root type only)
6039    --    Storage_Size_Variable               (Node26)   (base type only)
6040    --    (plus type attributes)
6041 
6042    --  E_Generic_In_Parameter
6043    --  E_Generic_In_Out_Parameter
6044    --    Current_Value                       (Node9)    (always Empty)
6045    --    Entry_Component                     (Node11)
6046    --    Actual_Subtype                      (Node17)
6047    --    Renamed_Object                      (Node18)   (always Empty)
6048    --    Default_Value                       (Node20)
6049    --    Protected_Formal                    (Node22)
6050    --    Is_Controlling_Formal               (Flag97)
6051    --    Is_Return_Object                    (Flag209)
6052    --    Parameter_Mode                      (synth)
6053 
6054    --  E_Incomplete_Type
6055    --  E_Incomplete_Subtype
6056    --    Direct_Primitive_Operations         (Elist10)
6057    --    Non_Limited_View                    (Node19)
6058    --    Private_Dependents                  (Elist18)
6059    --    Discriminant_Constraint             (Elist21)
6060    --    Stored_Constraint                   (Elist23)
6061    --    Has_Non_Limited_View                (synth)
6062    --    (plus type attributes)
6063 
6064    --  E_In_Parameter
6065    --  E_In_Out_Parameter
6066    --  E_Out_Parameter
6067    --    Mechanism                           (Uint8)    (Mechanism_Type)
6068    --    Current_Value                       (Node9)
6069    --    Discriminal_Link                    (Node10)   (discriminals only)
6070    --    Entry_Component                     (Node11)
6071    --    Esize                               (Uint12)
6072    --    Extra_Accessibility                 (Node13)
6073    --    Alignment                           (Uint14)
6074    --    Extra_Formal                        (Node15)
6075    --    Unset_Reference                     (Node16)
6076    --    Actual_Subtype                      (Node17)
6077    --    Renamed_Object                      (Node18)
6078    --    Spec_Entity                         (Node19)
6079    --    Default_Value                       (Node20)
6080    --    Default_Expr_Function               (Node21)
6081    --    Protected_Formal                    (Node22)
6082    --    Extra_Constrained                   (Node23)
6083    --    Last_Assignment                     (Node26)   (OUT, IN-OUT only)
6084    --    Activation_Record_Component         (Node31)
6085    --    Has_Initial_Value                   (Flag219)
6086    --    Is_Controlling_Formal               (Flag97)
6087    --    Is_Only_Out_Parameter               (Flag226)
6088    --    Low_Bound_Tested                    (Flag205)
6089    --    Is_Return_Object                    (Flag209)
6090    --    Parameter_Mode                      (synth)
6091 
6092    --  E_Label
6093    --    Enclosing_Scope                     (Node18)
6094    --    Reachable                           (Flag49)
6095 
6096    --  E_Limited_Private_Type
6097    --  E_Limited_Private_Subtype
6098    --    First_Entity                        (Node17)
6099    --    Private_Dependents                  (Elist18)
6100    --    Underlying_Full_View                (Node19)
6101    --    Last_Entity                         (Node20)
6102    --    Discriminant_Constraint             (Elist21)
6103    --    Private_View                        (Node22)
6104    --    Stored_Constraint                   (Elist23)
6105    --    Has_Completion                      (Flag26)
6106    --    (plus type attributes)
6107 
6108    --  E_Loop
6109    --    First_Exit_Statement                (Node8)
6110    --    Has_Exit                            (Flag47)
6111    --    Has_Loop_Entry_Attributes           (Flag260)
6112    --    Has_Master_Entity                   (Flag21)
6113    --    Has_Nested_Block_With_Handler       (Flag101)
6114    --    Uses_Sec_Stack                      (Flag95)
6115 
6116    --  E_Modular_Integer_Type
6117    --  E_Modular_Integer_Subtype
6118    --    Modulus                             (Uint17)   (base type only)
6119    --    Default_Aspect_Value                (Node19)   (base type only)
6120    --    Original_Array_Type                 (Node21)
6121    --    Scalar_Range                        (Node20)
6122    --    Static_Discrete_Predicate           (List25)
6123    --    Non_Binary_Modulus                  (Flag58)   (base type only)
6124    --    Has_Biased_Representation           (Flag139)
6125    --    Has_Shift_Operator                  (Flag267)  (base type only)
6126    --    No_Predicate_On_Actual              (Flag275)
6127    --    No_Dynamic_Predicate_On_Actual      (Flag276)
6128    --    Type_Low_Bound                      (synth)
6129    --    Type_High_Bound                     (synth)
6130    --    (plus type attributes)
6131 
6132    --  E_Named_Integer
6133 
6134    --  E_Named_Real
6135 
6136    --  E_Operator
6137    --    First_Entity                        (Node17)
6138    --    Alias                               (Node18)
6139    --    Extra_Accessibility_Of_Result       (Node19)
6140    --    Last_Entity                         (Node20)
6141    --    Subps_Index                         (Uint24)
6142    --    Overridden_Operation                (Node26)
6143    --    Linker_Section_Pragma               (Node33)
6144    --    Contract                            (Node34)
6145    --    Import_Pragma                       (Node35)
6146    --    SPARK_Pragma                        (Node40)
6147    --    Default_Expressions_Processed       (Flag108)
6148    --    Has_Nested_Subprogram               (Flag282)
6149    --    Is_Intrinsic_Subprogram             (Flag64)
6150    --    Is_Machine_Code_Subprogram          (Flag137)
6151    --    Is_Primitive                        (Flag218)
6152    --    Is_Pure                             (Flag44)
6153    --    SPARK_Pragma_Inherited              (Flag265)
6154    --    Aren't there more flags and fields? seems like this list should be
6155    --    more similar to the E_Function list, which is much longer ???
6156 
6157    --  E_Ordinary_Fixed_Point_Type
6158    --  E_Ordinary_Fixed_Point_Subtype
6159    --    Delta_Value                         (Ureal18)
6160    --    Default_Aspect_Value                (Node19)   (base type only)
6161    --    Scalar_Range                        (Node20)
6162    --    Static_Real_Or_String_Predicate     (Node25)
6163    --    Small_Value                         (Ureal21)
6164    --    Has_Small_Clause                    (Flag67)
6165    --    Aft_Value                           (synth)
6166    --    Type_Low_Bound                      (synth)
6167    --    Type_High_Bound                     (synth)
6168    --    (plus type attributes)
6169 
6170    --  E_Package
6171    --  E_Generic_Package
6172    --    Dependent_Instances                 (Elist8)   (for an instance)
6173    --    Renaming_Map                        (Uint9)
6174    --    Handler_Records                     (List10)   (non-generic case only)
6175    --    Generic_Homonym                     (Node11)   (generic case only)
6176    --    Associated_Formal_Package           (Node12)
6177    --    Elaboration_Entity                  (Node13)
6178    --    Shadow_Entities                     (List14)
6179    --    Related_Instance                    (Node15)   (non-generic case only)
6180    --    First_Private_Entity                (Node16)
6181    --    First_Entity                        (Node17)
6182    --    Renamed_Entity                      (Node18)
6183    --    Body_Entity                         (Node19)
6184    --    Last_Entity                         (Node20)
6185    --    Interface_Name                      (Node21)
6186    --    Scope_Depth_Value                   (Uint22)
6187    --    Generic_Renamings                   (Elist23)  (for an instance)
6188    --    Inner_Instances                     (Elist23)  (generic case only)
6189    --    Limited_View                        (Node23)   (non-generic/instance)
6190    --    Incomplete_Actuals                  (Elist24)  (for an instance)
6191    --    Abstract_States                     (Elist25)
6192    --    Package_Instantiation               (Node26)
6193    --    Current_Use_Clause                  (Node27)
6194    --    Finalizer                           (Node28)   (non-generic case only)
6195    --    Contract                            (Node34)
6196    --    SPARK_Pragma                        (Node40)
6197    --    SPARK_Aux_Pragma                    (Node41)
6198    --    Delay_Subprogram_Descriptors        (Flag50)
6199    --    Body_Needed_For_SAL                 (Flag40)
6200    --    Contains_Ignored_Ghost_Code         (Flag279)
6201    --    Discard_Names                       (Flag88)
6202    --    Elaboration_Entity_Required         (Flag174)
6203    --    Elaborate_Body_Desirable            (Flag210)  (non-generic case only)
6204    --    From_Limited_With                   (Flag159)
6205    --    Has_All_Calls_Remote                (Flag79)
6206    --    Has_Completion                      (Flag26)
6207    --    Has_Forward_Instantiation           (Flag175)
6208    --    Has_Master_Entity                   (Flag21)
6209    --    Has_RACW                            (Flag214)  (non-generic case only)
6210    --    In_Package_Body                     (Flag48)
6211    --    In_Use                              (Flag8)
6212    --    Is_Instantiated                     (Flag126)
6213    --    Is_Private_Descendant               (Flag53)
6214    --    Is_Visible_Lib_Unit                 (Flag116)
6215    --    Renamed_In_Spec                     (Flag231)  (non-generic case only)
6216    --    SPARK_Aux_Pragma_Inherited          (Flag266)
6217    --    SPARK_Pragma_Inherited              (Flag265)
6218    --    Static_Elaboration_Desired          (Flag77)   (non-generic case only)
6219    --    Has_Non_Null_Abstract_State         (synth)
6220    --    Has_Null_Abstract_State             (synth)
6221    --    Is_Wrapper_Package                  (synth)    (non-generic case only)
6222    --    Scope_Depth                         (synth)
6223 
6224    --  E_Package_Body
6225    --    Handler_Records                     (List10)   (non-generic case only)
6226    --    Related_Instance                    (Node15)   (non-generic case only)
6227    --    First_Entity                        (Node17)
6228    --    Spec_Entity                         (Node19)
6229    --    Last_Entity                         (Node20)
6230    --    Scope_Depth_Value                   (Uint22)
6231    --    Finalizer                           (Node28)   (non-generic case only)
6232    --    Contract                            (Node34)
6233    --    SPARK_Pragma                        (Node40)
6234    --    SPARK_Aux_Pragma                    (Node41)
6235    --    Contains_Ignored_Ghost_Code         (Flag279)
6236    --    Delay_Subprogram_Descriptors        (Flag50)
6237    --    SPARK_Aux_Pragma_Inherited          (Flag266)
6238    --    SPARK_Pragma_Inherited              (Flag265)
6239    --    Scope_Depth                         (synth)
6240 
6241    --  E_Private_Type
6242    --  E_Private_Subtype
6243    --    Direct_Primitive_Operations         (Elist10)
6244    --    First_Entity                        (Node17)
6245    --    Private_Dependents                  (Elist18)
6246    --    Underlying_Full_View                (Node19)
6247    --    Last_Entity                         (Node20)
6248    --    Discriminant_Constraint             (Elist21)
6249    --    Private_View                        (Node22)
6250    --    Stored_Constraint                   (Elist23)
6251    --    Has_Completion                      (Flag26)
6252    --    Is_Controlled                       (Flag42)   (base type only)
6253    --    Is_For_Access_Subtype               (Flag118)  (subtype only)
6254    --    (plus type attributes)
6255 
6256    --  E_Procedure
6257    --  E_Generic_Procedure
6258    --    Renaming_Map                        (Uint9)
6259    --    Handler_Records                     (List10)   (non-generic case only)
6260    --    Protected_Body_Subprogram           (Node11)
6261    --    Next_Inlined_Subprogram             (Node12)
6262    --    Elaboration_Entity                  (Node13)
6263    --    Postconditions_Proc                 (Node14)   (non-generic case only)
6264    --    DT_Position                         (Uint15)
6265    --    DTC_Entity                          (Node16)
6266    --    First_Entity                        (Node17)
6267    --    Alias                               (Node18)   (non-generic case only)
6268    --    Renamed_Entity                      (Node18)   (generic case only)
6269    --    Last_Entity                         (Node20)
6270    --    Interface_Name                      (Node21)
6271    --    Scope_Depth_Value                   (Uint22)
6272    --    Generic_Renamings                   (Elist23)  (for an instance)
6273    --    Inner_Instances                     (Elist23)  (generic case only)
6274    --    Protection_Object                   (Node23)   (for concurrent kind)
6275    --    Subps_Index                         (Uint24)   (non-generic case only)
6276    --    Interface_Alias                     (Node25)
6277    --    Overridden_Operation                (Node26)   (never for init proc)
6278    --    Wrapped_Entity                      (Node27)   (non-generic case only)
6279    --    Extra_Formals                       (Node28)
6280    --    Static_Initialization               (Node30)   (init_proc only)
6281    --    Thunk_Entity                        (Node31)   (thunk case only)
6282    --    Corresponding_Function              (Node32)   (generate C code only)
6283    --    Linker_Section_Pragma               (Node33)
6284    --    Contract                            (Node34)
6285    --    Import_Pragma                       (Node35)   (non-generic case only)
6286    --    Class_Wide_Preconds                 (List38)
6287    --    Class_Wide_Postconds                (List39)
6288    --    SPARK_Pragma                        (Node40)
6289    --    Original_Protected_Subprogram       (Node41)
6290    --    Body_Needed_For_SAL                 (Flag40)
6291    --    Contains_Ignored_Ghost_Code         (Flag279)
6292    --    Delay_Cleanups                      (Flag114)
6293    --    Discard_Names                       (Flag88)
6294    --    Elaboration_Entity_Required         (Flag174)
6295    --    Default_Expressions_Processed       (Flag108)
6296    --    Delay_Cleanups                      (Flag114)
6297    --    Delay_Subprogram_Descriptors        (Flag50)
6298    --    Discard_Names                       (Flag88)
6299    --    Has_Completion                      (Flag26)
6300    --    Has_Expanded_Contract               (Flag240)  (non-generic case only)
6301    --    Has_Master_Entity                   (Flag21)
6302    --    Has_Nested_Block_With_Handler       (Flag101)
6303    --    Has_Nested_Subprogram               (Flag282)
6304    --    Is_Abstract_Subprogram              (Flag19)   (non-generic case only)
6305    --    Is_Asynchronous                     (Flag81)
6306    --    Is_Called                           (Flag102)  (non-generic case only)
6307    --    Is_Constructor                      (Flag76)
6308    --    Is_Default_Init_Cond_Procedure      (Flag132)  (non-generic case only)
6309    --    Is_Eliminated                       (Flag124)
6310    --    Is_Generic_Actual_Subprogram        (Flag274)  (non-generic case only)
6311    --    Is_Hidden_Non_Overridden_Subpgm     (Flag2)    (non-generic case only)
6312    --    Is_Inlined_Always                   (Flag1)    (non-generic case only)
6313    --    Is_Instantiated                     (Flag126)  (generic case only)
6314    --    Is_Interrupt_Handler                (Flag89)
6315    --    Is_Intrinsic_Subprogram             (Flag64)
6316    --    Is_Invariant_Procedure              (Flag257)  (non-generic case only)
6317    --    Is_Machine_Code_Subprogram          (Flag137)  (non-generic case only)
6318    --    Is_Null_Init_Proc                   (Flag178)
6319    --    Is_Partial_Invariant_Procedure      (Flag292)  (non-generic case only)
6320    --    Is_Predicate_Function               (Flag255)  (non-generic case only)
6321    --    Is_Predicate_Function_M             (Flag256)  (non-generic case only)
6322    --    Is_Primitive                        (Flag218)
6323    --    Is_Primitive_Wrapper                (Flag195)  (non-generic case only)
6324    --    Is_Private_Descendant               (Flag53)
6325    --    Is_Private_Primitive                (Flag245)  (non-generic case only)
6326    --    Is_Pure                             (Flag44)
6327    --    Is_Valued_Procedure                 (Flag127)
6328    --    Is_Visible_Lib_Unit                 (Flag116)
6329    --    Needs_No_Actuals                    (Flag22)
6330    --    No_Return                           (Flag113)
6331    --    Requires_Overriding                 (Flag213)  (non-generic case only)
6332    --    Sec_Stack_Needed_For_Return         (Flag167)
6333    --    SPARK_Pragma_Inherited              (Flag265)
6334    --    Address_Clause                      (synth)
6335    --    First_Formal                        (synth)
6336    --    First_Formal_With_Extras            (synth)
6337    --    Is_Finalizer                        (synth)
6338    --    Last_Formal                         (synth)
6339    --    Number_Formals                      (synth)
6340 
6341    --  E_Protected_Body
6342    --    SPARK_Pragma                        (Node40)
6343    --    SPARK_Pragma_Inherited              (Flag265)
6344    --    (any others??? First/Last Entity, Scope_Depth???)
6345 
6346    --  E_Protected_Object
6347 
6348    --  E_Protected_Type
6349    --  E_Protected_Subtype
6350    --    Direct_Primitive_Operations         (Elist10)
6351    --    First_Private_Entity                (Node16)
6352    --    First_Entity                        (Node17)
6353    --    Corresponding_Record_Type           (Node18)
6354    --    Entry_Bodies_Array                  (Node19)
6355    --    Last_Entity                         (Node20)
6356    --    Discriminant_Constraint             (Elist21)
6357    --    Scope_Depth_Value                   (Uint22)
6358    --    Stored_Constraint                   (Elist23)
6359    --    Anonymous_Object                    (Node30)
6360    --    Contract                            (Node34)
6361    --    SPARK_Pragma                        (Node40)
6362    --    SPARK_Aux_Pragma                    (Node41)
6363    --    Sec_Stack_Needed_For_Return         (Flag167)  ???
6364    --    SPARK_Aux_Pragma_Inherited          (Flag266)
6365    --    SPARK_Pragma_Inherited              (Flag265)
6366    --    Uses_Lock_Free                      (Flag188)
6367    --    Uses_Sec_Stack                      (Flag95)   ???
6368    --    First_Component                     (synth)
6369    --    First_Component_Or_Discriminant     (synth)
6370    --    Has_Entries                         (synth)
6371    --    Has_Interrupt_Handler               (synth)
6372    --    Number_Entries                      (synth)
6373    --    Scope_Depth                         (synth)
6374    --    (plus type attributes)
6375 
6376    --  E_Record_Type
6377    --  E_Record_Subtype
6378    --    Direct_Primitive_Operations         (Elist10)
6379    --    Access_Disp_Table                   (Elist16)  (base type only)
6380    --    Cloned_Subtype                      (Node16)   (subtype case only)
6381    --    First_Entity                        (Node17)
6382    --    Corresponding_Concurrent_Type       (Node18)
6383    --    Parent_Subtype                      (Node19)   (base type only)
6384    --    Last_Entity                         (Node20)
6385    --    Discriminant_Constraint             (Elist21)
6386    --    Corresponding_Remote_Type           (Node22)
6387    --    Stored_Constraint                   (Elist23)
6388    --    Interfaces                          (Elist25)
6389    --    Dispatch_Table_Wrappers             (Elist26)  (base type only)
6390    --    Underlying_Record_View              (Node28)   (base type only)
6391    --    Component_Alignment                 (special)  (base type only)
6392    --    C_Pass_By_Copy                      (Flag125)  (base type only)
6393    --    Has_Dispatch_Table                  (Flag220)  (base tagged type only)
6394    --    Has_Pragma_Pack                     (Flag121)  (impl base type only)
6395    --    Has_Private_Ancestor                (Flag151)
6396    --    Has_Record_Rep_Clause               (Flag65)   (base type only)
6397    --    Has_Static_Discriminants            (Flag211)  (subtype only)
6398    --    Is_Class_Wide_Equivalent_Type       (Flag35)
6399    --    Is_Concurrent_Record_Type           (Flag20)
6400    --    Is_Constrained                      (Flag12)
6401    --    Is_Controlled                       (Flag42)   (base type only)
6402    --    Is_Interface                        (Flag186)
6403    --    Is_Limited_Interface                (Flag197)
6404    --    OK_To_Reorder_Components            (Flag239)  (base type only)
6405    --    Reverse_Bit_Order                   (Flag164)  (base type only)
6406    --    Reverse_Storage_Order               (Flag93)   (base type only)
6407    --    SSO_Set_High_By_Default             (Flag273)  (base type only)
6408    --    SSO_Set_Low_By_Default              (Flag272)  (base type only)
6409    --    First_Component                     (synth)
6410    --    First_Component_Or_Discriminant     (synth)
6411    --    (plus type attributes)
6412 
6413    --  E_Record_Type_With_Private
6414    --  E_Record_Subtype_With_Private
6415    --    Direct_Primitive_Operations         (Elist10)
6416    --    First_Entity                        (Node17)
6417    --    Private_Dependents                  (Elist18)
6418    --    Underlying_Full_View                (Node19)
6419    --    Last_Entity                         (Node20)
6420    --    Discriminant_Constraint             (Elist21)
6421    --    Private_View                        (Node22)
6422    --    Stored_Constraint                   (Elist23)
6423    --    Interfaces                          (Elist25)
6424    --    Has_Completion                      (Flag26)
6425    --    Has_Private_Ancestor                (Flag151)
6426    --    Has_Record_Rep_Clause               (Flag65)   (base type only)
6427    --    Is_Concurrent_Record_Type           (Flag20)
6428    --    Is_Constrained                      (Flag12)
6429    --    Is_Controlled                       (Flag42)   (base type only)
6430    --    Is_Interface                        (Flag186)
6431    --    Is_Limited_Interface                (Flag197)
6432    --    OK_To_Reorder_Components            (Flag239)  (base type only)
6433    --    Reverse_Bit_Order                   (Flag164)  (base type only)
6434    --    Reverse_Storage_Order               (Flag93)   (base type only)
6435    --    SSO_Set_High_By_Default             (Flag273)  (base type only)
6436    --    SSO_Set_Low_By_Default              (Flag272)  (base type only)
6437    --    First_Component                     (synth)
6438    --    First_Component_Or_Discriminant     (synth)
6439    --    (plus type attributes)
6440 
6441    --  E_Return_Statement
6442    --    Return_Applies_To                   (Node8)
6443 
6444    --  E_Signed_Integer_Type
6445    --  E_Signed_Integer_Subtype
6446    --    Default_Aspect_Value                (Node19)   (base type only)
6447    --    Scalar_Range                        (Node20)
6448    --    Static_Discrete_Predicate           (List25)
6449    --    Has_Biased_Representation           (Flag139)
6450    --    Has_Shift_Operator                  (Flag267)  (base type only)
6451    --    No_Predicate_On_Actual              (Flag275)
6452    --    No_Dynamic_Predicate_On_Actual      (Flag276)
6453    --    Type_Low_Bound                      (synth)
6454    --    Type_High_Bound                     (synth)
6455    --    (plus type attributes)
6456 
6457    --  E_String_Literal_Subtype
6458    --    String_Literal_Length               (Uint16)
6459    --    First_Index                         (Node17)   (always Empty)
6460    --    String_Literal_Low_Bound            (Node18)
6461    --    Packed_Array_Impl_Type              (Node23)
6462    --    (plus type attributes)
6463 
6464    --  E_Subprogram_Body
6465    --    Mechanism                           (Uint8)
6466    --    First_Entity                        (Node17)
6467    --    Corresponding_Protected_Entry       (Node18)
6468    --    Last_Entity                         (Node20)
6469    --    Scope_Depth_Value                   (Uint22)
6470    --    Extra_Formals                       (Node28)
6471    --    Contract                            (Node34)
6472    --    SPARK_Pragma                        (Node40)
6473    --    Contains_Ignored_Ghost_Code         (Flag279)
6474    --    SPARK_Pragma_Inherited              (Flag265)
6475    --    Scope_Depth                         (synth)
6476 
6477    --  E_Subprogram_Type
6478    --    Extra_Accessibility_Of_Result       (Node19)
6479    --    Directly_Designated_Type            (Node20)
6480    --    Extra_Formals                       (Node28)
6481    --    First_Formal                        (synth)
6482    --    First_Formal_With_Extras            (synth)
6483    --    Last_Formal                         (synth)
6484    --    Number_Formals                      (synth)
6485    --    (plus type attributes)
6486 
6487    --  E_Task_Body
6488    --    Contract                            (Node34)
6489    --    SPARK_Pragma                        (Node40)
6490    --    SPARK_Pragma_Inherited              (Flag265)
6491    --    (any others??? First/Last Entity, Scope_Depth???)
6492 
6493    --  E_Task_Type
6494    --  E_Task_Subtype
6495    --    Direct_Primitive_Operations         (Elist10)
6496    --    First_Private_Entity                (Node16)
6497    --    First_Entity                        (Node17)
6498    --    Corresponding_Record_Type           (Node18)
6499    --    Last_Entity                         (Node20)
6500    --    Discriminant_Constraint             (Elist21)
6501    --    Scope_Depth_Value                   (Uint22)
6502    --    Stored_Constraint                   (Elist23)
6503    --    Task_Body_Procedure                 (Node25)
6504    --    Storage_Size_Variable               (Node26)   (base type only)
6505    --    Relative_Deadline_Variable          (Node28)   (base type only)
6506    --    Anonymous_Object                    (Node30)
6507    --    Contract                            (Node34)
6508    --    SPARK_Pragma                        (Node40)
6509    --    SPARK_Aux_Pragma                    (Node41)
6510    --    Delay_Cleanups                      (Flag114)
6511    --    Has_Master_Entity                   (Flag21)
6512    --    Has_Storage_Size_Clause             (Flag23)   (base type only)
6513    --    Sec_Stack_Needed_For_Return         (Flag167)  ???
6514    --    SPARK_Aux_Pragma_Inherited          (Flag266)
6515    --    SPARK_Pragma_Inherited              (Flag265)
6516    --    Uses_Sec_Stack                      (Flag95)   ???
6517    --    First_Component                     (synth)
6518    --    First_Component_Or_Discriminant     (synth)
6519    --    Has_Entries                         (synth)
6520    --    Number_Entries                      (synth)
6521    --    Scope_Depth                         (synth)
6522    --    (plus type attributes)
6523 
6524    --  E_Variable
6525    --    Hiding_Loop_Variable                (Node8)
6526    --    Current_Value                       (Node9)
6527    --    Part_Of_Constituents                (Elist10)
6528    --    Part_Of_References                  (Elist11)
6529    --    Esize                               (Uint12)
6530    --    Extra_Accessibility                 (Node13)
6531    --    Alignment                           (Uint14)
6532    --    Status_Flag_Or_Transient_Decl       (Node15)   (transient object only)
6533    --    Unset_Reference                     (Node16)
6534    --    Actual_Subtype                      (Node17)
6535    --    Renamed_Object                      (Node18)
6536    --    Size_Check_Code                     (Node19)
6537    --    Prival_Link                         (Node20)
6538    --    Interface_Name                      (Node21)
6539    --    Shared_Var_Procs_Instance           (Node22)
6540    --    Extra_Constrained                   (Node23)
6541    --    Related_Expression                  (Node24)
6542    --    Debug_Renaming_Link                 (Node25)
6543    --    Last_Assignment                     (Node26)
6544    --    Related_Type                        (Node27)
6545    --    Initialization_Statements           (Node28)
6546    --    BIP_Initialization_Call             (Node29)
6547    --    Last_Aggregate_Assignment           (Node30)
6548    --    Activation_Record_Component         (Node31)
6549    --    Encapsulating_State                 (Node32)
6550    --    Linker_Section_Pragma               (Node33)
6551    --    Contract                            (Node34)
6552    --    SPARK_Pragma                        (Node40)
6553    --    Has_Alignment_Clause                (Flag46)
6554    --    Has_Atomic_Components               (Flag86)
6555    --    Has_Biased_Representation           (Flag139)
6556    --    Has_Independent_Components          (Flag34)
6557    --    Has_Initial_Value                   (Flag219)
6558    --    Has_Size_Clause                     (Flag29)
6559    --    Has_Volatile_Components             (Flag87)
6560    --    Is_Atomic                           (Flag85)
6561    --    Is_Eliminated                       (Flag124)
6562    --    Is_Independent                      (Flag268)
6563    --    Is_Processed_Transient              (Flag252)
6564    --    Is_Return_Object                    (Flag209)
6565    --    Is_Safe_To_Reevaluate               (Flag249)
6566    --    Is_Shared_Passive                   (Flag60)
6567    --    Is_True_Constant                    (Flag163)
6568    --    Is_Uplevel_Referenced_Entity        (Flag283)
6569    --    Is_Volatile                         (Flag16)
6570    --    Is_Volatile_Full_Access             (Flag285)
6571    --    OK_To_Rename                        (Flag247)
6572    --    Optimize_Alignment_Space            (Flag241)
6573    --    Optimize_Alignment_Time             (Flag242)
6574    --    SPARK_Pragma_Inherited              (Flag265)
6575    --    Suppress_Initialization             (Flag105)
6576    --    Treat_As_Volatile                   (Flag41)
6577    --    Address_Clause                      (synth)
6578    --    Alignment_Clause                    (synth)
6579    --    Is_Atomic_Or_VFA                    (synth)
6580    --    Size_Clause                         (synth)
6581 
6582    --  E_Void
6583    --    Since E_Void is the initial Ekind value of an entity when it is first
6584    --    created, one might expect that no attributes would be defined on such
6585    --    an entity until its Ekind field is set. However, in practice, there
6586    --    are many instances in which fields of an E_Void entity are set in the
6587    --    code prior to setting the Ekind field. This is not well documented or
6588    --    well controlled, and needs cleaning up later. Meanwhile, the access
6589    --    procedures in the body of Einfo permit many, but not all, attributes
6590    --    to be applied to an E_Void entity, precisely so that this kind of
6591    --    pre-setting of attributes works. This is really a hole in the dynamic
6592    --    type checking, since there is no assurance that the eventual Ekind
6593    --    value will be appropriate for the attributes set, and the consequence
6594    --    is that the dynamic type checking in the Einfo body is unnecessarily
6595    --    weak. To be looked at systematically some time ???
6596 
6597    ---------------------------------
6598    -- Component_Alignment Control --
6599    ---------------------------------
6600 
6601    --  There are four types of alignment possible for array and record
6602    --  types, and a field in the type entities contains a value of the
6603    --  following type indicating which alignment choice applies. For full
6604    --  details of the meaning of these alignment types, see description
6605    --  of the Component_Alignment pragma.
6606 
6607    type Component_Alignment_Kind is (
6608       Calign_Default,          -- default alignment
6609       Calign_Component_Size,   -- natural alignment for component size
6610       Calign_Component_Size_4, -- natural for size <= 4, 4 for size >= 4
6611       Calign_Storage_Unit);    -- all components byte aligned
6612 
6613    -----------------------------------
6614    -- Floating Point Representation --
6615    -----------------------------------
6616 
6617    type Float_Rep_Kind is (
6618       IEEE_Binary,  -- IEEE 754p conforming binary format
6619       AAMP);        -- AAMP format
6620 
6621    ---------------
6622    -- Iterators --
6623    ---------------
6624 
6625    --  In addition to attributes that are stored as plain data, other
6626    --  attributes are procedural, and require some small amount of
6627    --  computation. Of course, from the point of view of a user of this
6628    --  package, the distinction is not visible (even the field information
6629    --  provided below should be disregarded, as it is subject to change
6630    --  without notice). A number of attributes appear as lists: lists of
6631    --  formals, lists of actuals, of discriminants, etc. For these, pairs
6632    --  of functions are defined, which take the form:
6633 
6634    --      function First_Thing (E : Enclosing_Construct) return Thing;
6635    --      function Next_Thing (T : Thing) return Thing;
6636 
6637    --  The end of iteration is always signaled by a value of Empty, so that
6638    --  loops over these chains invariably have the form:
6639 
6640    --      This : Thing;
6641    --      ...
6642    --      This := First_Thing (E);
6643 
6644    --      while Present (This) loop
6645    --         Do_Something_With (This);
6646    --        ...
6647    --        This := Next_Thing (This);
6648    --      end loop;
6649 
6650    -----------------------------------
6651    -- Handling of Check Suppression --
6652    -----------------------------------
6653 
6654    --  There are three ways that checks can be suppressed:
6655 
6656    --    1.  At the command line level
6657    --    2.  At the scope level.
6658    --    3.  At the entity level.
6659 
6660    --  See spec of Sem in sem.ads for details of the data structures used
6661    --  to keep track of these various methods for suppressing checks.
6662 
6663    -------------------------------
6664    -- Handling of Discriminants --
6665    -------------------------------
6666 
6667    --  During semantic processing, discriminants are separate entities which
6668    --  reflect the semantic properties and allowed usage of discriminants in
6669    --  the language.
6670 
6671    --  In the case of discriminants used as bounds, the references are handled
6672    --  directly, since special processing is needed in any case. However, there
6673    --  are two circumstances in which discriminants are referenced in a quite
6674    --  general manner, like any other variables:
6675 
6676    --     In initialization expressions for records. Note that the expressions
6677    --     used in Priority, Storage_Size, Task_Info and Relative_Deadline
6678    --     pragmas are effectively in this category, since these pragmas are
6679    --     converted to initialized record fields in the Corresponding_Record_
6680    --     Type.
6681 
6682    --     In task and protected bodies, where the discriminant values may be
6683    --     referenced freely within these bodies. Discriminants can also appear
6684    --     in bounds of entry families and in defaults of operations.
6685 
6686    --  In both these cases, the discriminants must be treated essentially as
6687    --  objects. The following approach is used to simplify and minimize the
6688    --  special processing that is required.
6689 
6690    --  When a record type with discriminants is analyzed, semantic processing
6691    --  creates the entities for the discriminants. It also creates additional
6692    --  sets of entities called discriminals, one for each of the discriminants,
6693    --  and the Discriminal field of the discriminant entity points to this
6694    --  additional entity, which is initially created as an uninitialized
6695    --  (E_Void) entity.
6696 
6697    --  During expansion of expressions, any discriminant reference is replaced
6698    --  by a reference to the corresponding discriminal. When the initialization
6699    --  procedure for the record is created (there will always be one, since
6700    --  discriminants are present, see Exp_Ch3 for further details), the
6701    --  discriminals are used as the entities for the formal parameters of
6702    --  this initialization procedure. The references to these discriminants
6703    --  have already been replaced by references to these discriminals, which
6704    --  are now the formal parameters corresponding to the required objects.
6705 
6706    --  In the case of a task or protected body, the semantics similarly creates
6707    --  a set of discriminals for the discriminants of the task or protected
6708    --  type. When the procedure is created for the task body, the parameter
6709    --  passed in is a reference to the task value type, which contains the
6710    --  required discriminant values. The expander creates a set of declarations
6711    --  of the form:
6712 
6713    --      discr_nameD : constant discr_type renames _task.discr_name;
6714 
6715    --  where discr_nameD is the discriminal entity referenced by the task
6716    --  discriminant, and _task is the task value passed in as the parameter.
6717    --  Again, any references to discriminants in the task body have been
6718    --  replaced by the discriminal reference, which is now an object that
6719    --  contains the required value.
6720 
6721    --  This approach for tasks means that two sets of discriminals are needed
6722    --  for a task type, one for the initialization procedure, and one for the
6723    --  task body. This works out nicely, since the semantics allocates one set
6724    --  for the task itself, and one set for the corresponding record.
6725 
6726    --  The one bit of trickiness arises in making sure that the right set of
6727    --  discriminals is used at the right time. First the task definition is
6728    --  processed. Any references to discriminants here are replaced by the
6729    --  corresponding *task* discriminals (the record type doesn't even exist
6730    --  yet, since it is constructed as part of the expansion of the task
6731    --  declaration, which happens after the semantic processing of the task
6732    --  definition). The discriminants to be used for the corresponding record
6733    --  are created at the same time as the other discriminals, and held in the
6734    --  CR_Discriminant field of the discriminant. A use of the discriminant in
6735    --  a bound for an entry family is replaced with the CR_Discriminant because
6736    --  it controls the bound of the entry queue array which is a component of
6737    --  the corresponding record.
6738 
6739    --  Just before the record initialization routine is constructed, the
6740    --  expander exchanges the task and record discriminals. This has two
6741    --  effects. First the generation of the record initialization routine
6742    --  uses the discriminals that are now on the record, which is the set
6743    --  that used to be on the task, which is what we want.
6744 
6745    --  Second, a new set of (so far unused) discriminals is now on the task
6746    --  discriminants, and it is this set that will be used for expanding the
6747    --  task body, and also for the discriminal declarations at the start of
6748    --  the task body.
6749 
6750    ---------------------------------------------------
6751    -- Handling of private data in protected objects --
6752    ---------------------------------------------------
6753 
6754    --  Private components in protected types pose problems similar to those
6755    --  of discriminants. Private data is visible and can be directly referenced
6756    --  from protected bodies. However, when protected entries and subprograms
6757    --  are expanded into corresponding bodies and barrier functions, private
6758    --  components lose their original context and visibility.
6759 
6760    --  To remedy this side effect of expansion, private components are expanded
6761    --  into renamings called "privals", by analogy with "discriminals".
6762 
6763    --     private_comp : comp_type renames _object.private_comp;
6764 
6765    --  Prival declarations are inserted during the analysis of subprogram and
6766    --  entry bodies to ensure proper visibility for any subsequent expansion.
6767    --  _Object is the formal parameter of the generated corresponding body or
6768    --  a local renaming which denotes the protected object obtained from entry
6769    --  parameter _O. Privals receive minimal decoration upon creation and are
6770    --  categorized as either E_Variable for the general case or E_Constant when
6771    --  they appear in functions.
6772 
6773    --  Along with the local declarations, each private component carries a
6774    --  placeholder which references the prival entity in the current body. This
6775    --  form of indirection is used to resolve name clashes of privals and other
6776    --  locally visible entities such as parameters, local objects, entry family
6777    --  indexes or identifiers used in the barrier condition.
6778 
6779    --  When analyzing the statements of a protected subprogram or entry, any
6780    --  reference to a private component must resolve to the locally declared
6781    --  prival through normal visibility. In case of name conflicts (the cases
6782    --  above), the prival is marked as hidden and acts as a weakly declared
6783    --  entity. As a result, the reference points to the correct entity. When a
6784    --  private component is denoted by an expanded name (prot_type.comp for
6785    --  example), the expansion mechanism uses the placeholder of the component
6786    --  to correct the Entity and Etype of the reference.
6787 
6788    -------------------
6789    -- Type Synonyms --
6790    -------------------
6791 
6792    --  The following type synonyms are used to tidy up the function and
6793    --  procedure declarations that follow, and also to make it possible to meet
6794    --  the requirement for the XEINFO utility that all function specs must fit
6795    --  on a single source line.
6796 
6797    subtype B is Boolean;
6798    subtype C is Component_Alignment_Kind;
6799    subtype E is Entity_Id;
6800    subtype F is Float_Rep_Kind;
6801    subtype M is Mechanism_Type;
6802    subtype N is Node_Id;
6803    subtype U is Uint;
6804    subtype R is Ureal;
6805    subtype L is Elist_Id;
6806    subtype S is List_Id;
6807 
6808    --------------------------------
6809    -- Attribute Access Functions --
6810    --------------------------------
6811 
6812    --  All attributes are manipulated through a procedural interface. This
6813    --  section contains the functions used to obtain attribute values which
6814    --  correspond to values in fields or flags in the entity itself.
6815 
6816    function Abstract_States                     (Id : E) return L;
6817    function Accept_Address                      (Id : E) return L;
6818    function Access_Disp_Table                   (Id : E) return L;
6819    function Activation_Record_Component         (Id : E) return E;
6820    function Actual_Subtype                      (Id : E) return E;
6821    function Address_Taken                       (Id : E) return B;
6822    function Alias                               (Id : E) return E;
6823    function Alignment                           (Id : E) return U;
6824    function Anonymous_Master                    (Id : E) return E;
6825    function Anonymous_Object                    (Id : E) return E;
6826    function Associated_Entity                   (Id : E) return E;
6827    function Associated_Formal_Package           (Id : E) return E;
6828    function Associated_Node_For_Itype           (Id : E) return N;
6829    function Associated_Storage_Pool             (Id : E) return E;
6830    function Barrier_Function                    (Id : E) return N;
6831    function BIP_Initialization_Call             (Id : E) return N;
6832    function Block_Node                          (Id : E) return N;
6833    function Body_Entity                         (Id : E) return E;
6834    function Body_Needed_For_SAL                 (Id : E) return B;
6835    function Body_References                     (Id : E) return L;
6836    function C_Pass_By_Copy                      (Id : E) return B;
6837    function Can_Never_Be_Null                   (Id : E) return B;
6838    function Can_Use_Internal_Rep                (Id : E) return B;
6839    function Checks_May_Be_Suppressed            (Id : E) return B;
6840    function Class_Wide_Postconds                (Id : E) return S;
6841    function Class_Wide_Preconds                 (Id : E) return S;
6842    function Class_Wide_Type                     (Id : E) return E;
6843    function Cloned_Subtype                      (Id : E) return E;
6844    function Component_Alignment                 (Id : E) return C;
6845    function Component_Bit_Offset                (Id : E) return U;
6846    function Component_Clause                    (Id : E) return N;
6847    function Component_Size                      (Id : E) return U;
6848    function Component_Type                      (Id : E) return E;
6849    function Contains_Ignored_Ghost_Code         (Id : E) return B;
6850    function Contract                            (Id : E) return N;
6851    function Contract_Wrapper                    (Id : E) return E;
6852    function Corresponding_Concurrent_Type       (Id : E) return E;
6853    function Corresponding_Discriminant          (Id : E) return E;
6854    function Corresponding_Equality              (Id : E) return E;
6855    function Corresponding_Function              (Id : E) return E;
6856    function Corresponding_Procedure             (Id : E) return E;
6857    function Corresponding_Protected_Entry       (Id : E) return E;
6858    function Corresponding_Record_Type           (Id : E) return E;
6859    function Corresponding_Remote_Type           (Id : E) return E;
6860    function CR_Discriminant                     (Id : E) return E;
6861    function Current_Use_Clause                  (Id : E) return E;
6862    function Current_Value                       (Id : E) return N;
6863    function Debug_Info_Off                      (Id : E) return B;
6864    function Debug_Renaming_Link                 (Id : E) return E;
6865    function Default_Aspect_Component_Value      (Id : E) return N;
6866    function Default_Aspect_Value                (Id : E) return N;
6867    function Default_Expr_Function               (Id : E) return E;
6868    function Default_Expressions_Processed       (Id : E) return B;
6869    function Default_Value                       (Id : E) return N;
6870    function Delay_Cleanups                      (Id : E) return B;
6871    function Delay_Subprogram_Descriptors        (Id : E) return B;
6872    function Delta_Value                         (Id : E) return R;
6873    function Dependent_Instances                 (Id : E) return L;
6874    function Depends_On_Private                  (Id : E) return B;
6875    function Derived_Type_Link                   (Id : E) return E;
6876    function Digits_Value                        (Id : E) return U;
6877    function Direct_Primitive_Operations         (Id : E) return L;
6878    function Directly_Designated_Type            (Id : E) return E;
6879    function Disable_Controlled                  (Id : E) return B;
6880    function Discard_Names                       (Id : E) return B;
6881    function Discriminal                         (Id : E) return E;
6882    function Discriminal_Link                    (Id : E) return E;
6883    function Discriminant_Checking_Func          (Id : E) return E;
6884    function Discriminant_Constraint             (Id : E) return L;
6885    function Discriminant_Default_Value          (Id : E) return N;
6886    function Discriminant_Number                 (Id : E) return U;
6887    function Dispatch_Table_Wrappers             (Id : E) return L;
6888    function DT_Entry_Count                      (Id : E) return U;
6889    function DT_Offset_To_Top_Func               (Id : E) return E;
6890    function DT_Position                         (Id : E) return U;
6891    function DTC_Entity                          (Id : E) return E;
6892    function Elaborate_Body_Desirable            (Id : E) return B;
6893    function Elaboration_Entity                  (Id : E) return E;
6894    function Elaboration_Entity_Required         (Id : E) return B;
6895    function Encapsulating_State                 (Id : E) return E;
6896    function Enclosing_Scope                     (Id : E) return E;
6897    function Entry_Accepted                      (Id : E) return B;
6898    function Entry_Bodies_Array                  (Id : E) return E;
6899    function Entry_Cancel_Parameter              (Id : E) return E;
6900    function Entry_Component                     (Id : E) return E;
6901    function Entry_Formal                        (Id : E) return E;
6902    function Entry_Index_Constant                (Id : E) return E;
6903    function Entry_Index_Type                    (Id : E) return E;
6904    function Entry_Parameters_Type               (Id : E) return E;
6905    function Enum_Pos_To_Rep                     (Id : E) return E;
6906    function Enumeration_Pos                     (Id : E) return U;
6907    function Enumeration_Rep                     (Id : E) return U;
6908    function Enumeration_Rep_Expr                (Id : E) return N;
6909    function Equivalent_Type                     (Id : E) return E;
6910    function Esize                               (Id : E) return U;
6911    function Extra_Accessibility                 (Id : E) return E;
6912    function Extra_Accessibility_Of_Result       (Id : E) return E;
6913    function Extra_Constrained                   (Id : E) return E;
6914    function Extra_Formal                        (Id : E) return E;
6915    function Extra_Formals                       (Id : E) return E;
6916    function Finalization_Master                 (Id : E) return E;
6917    function Finalize_Storage_Only               (Id : E) return B;
6918    function Finalizer                           (Id : E) return E;
6919    function First_Entity                        (Id : E) return E;
6920    function First_Exit_Statement                (Id : E) return N;
6921    function First_Index                         (Id : E) return N;
6922    function First_Literal                       (Id : E) return E;
6923    function First_Private_Entity                (Id : E) return E;
6924    function First_Rep_Item                      (Id : E) return N;
6925    function Float_Rep                           (Id : E) return F;
6926    function Freeze_Node                         (Id : E) return N;
6927    function From_Limited_With                   (Id : E) return B;
6928    function Full_View                           (Id : E) return E;
6929    function Generic_Homonym                     (Id : E) return E;
6930    function Generic_Renamings                   (Id : E) return L;
6931    function Handler_Records                     (Id : E) return S;
6932    function Has_Aliased_Components              (Id : E) return B;
6933    function Has_Alignment_Clause                (Id : E) return B;
6934    function Has_All_Calls_Remote                (Id : E) return B;
6935    function Has_Atomic_Components               (Id : E) return B;
6936    function Has_Biased_Representation           (Id : E) return B;
6937    function Has_Completion                      (Id : E) return B;
6938    function Has_Completion_In_Body              (Id : E) return B;
6939    function Has_Complex_Representation          (Id : E) return B;
6940    function Has_Component_Size_Clause           (Id : E) return B;
6941    function Has_Constrained_Partial_View        (Id : E) return B;
6942    function Has_Contiguous_Rep                  (Id : E) return B;
6943    function Has_Controlled_Component            (Id : E) return B;
6944    function Has_Controlling_Result              (Id : E) return B;
6945    function Has_Convention_Pragma               (Id : E) return B;
6946    function Has_Default_Aspect                  (Id : E) return B;
6947    function Has_Default_Init_Cond               (Id : E) return B;
6948    function Has_Delayed_Aspects                 (Id : E) return B;
6949    function Has_Delayed_Freeze                  (Id : E) return B;
6950    function Has_Delayed_Rep_Aspects             (Id : E) return B;
6951    function Has_Discriminants                   (Id : E) return B;
6952    function Has_Dispatch_Table                  (Id : E) return B;
6953    function Has_Dynamic_Predicate_Aspect        (Id : E) return B;
6954    function Has_Enumeration_Rep_Clause          (Id : E) return B;
6955    function Has_Exit                            (Id : E) return B;
6956    function Has_Expanded_Contract               (Id : E) return B;
6957    function Has_Forward_Instantiation           (Id : E) return B;
6958    function Has_Fully_Qualified_Name            (Id : E) return B;
6959    function Has_Gigi_Rep_Item                   (Id : E) return B;
6960    function Has_Homonym                         (Id : E) return B;
6961    function Has_Implicit_Dereference            (Id : E) return B;
6962    function Has_Independent_Components          (Id : E) return B;
6963    function Has_Inheritable_Invariants          (Id : E) return B;
6964    function Has_Inherited_Default_Init_Cond     (Id : E) return B;
6965    function Has_Inherited_Invariants            (Id : E) return B;
6966    function Has_Initial_Value                   (Id : E) return B;
6967    function Has_Interrupt_Handler               (Id : E) return B;
6968    function Has_Invariants                      (Id : E) return B;
6969    function Has_Loop_Entry_Attributes           (Id : E) return B;
6970    function Has_Machine_Radix_Clause            (Id : E) return B;
6971    function Has_Master_Entity                   (Id : E) return B;
6972    function Has_Missing_Return                  (Id : E) return B;
6973    function Has_Nested_Block_With_Handler       (Id : E) return B;
6974    function Has_Nested_Subprogram               (Id : E) return B;
6975    function Has_Non_Standard_Rep                (Id : E) return B;
6976    function Has_Object_Size_Clause              (Id : E) return B;
6977    function Has_Out_Or_In_Out_Parameter         (Id : E) return B;
6978    function Has_Own_Invariants                  (Id : E) return B;
6979    function Has_Per_Object_Constraint           (Id : E) return B;
6980    function Has_Pragma_Controlled               (Id : E) return B;
6981    function Has_Pragma_Elaborate_Body           (Id : E) return B;
6982    function Has_Pragma_Inline                   (Id : E) return B;
6983    function Has_Pragma_Inline_Always            (Id : E) return B;
6984    function Has_Pragma_No_Inline                (Id : E) return B;
6985    function Has_Pragma_Ordered                  (Id : E) return B;
6986    function Has_Pragma_Pack                     (Id : E) return B;
6987    function Has_Pragma_Preelab_Init             (Id : E) return B;
6988    function Has_Pragma_Pure                     (Id : E) return B;
6989    function Has_Pragma_Pure_Function            (Id : E) return B;
6990    function Has_Pragma_Thread_Local_Storage     (Id : E) return B;
6991    function Has_Pragma_Unmodified               (Id : E) return B;
6992    function Has_Pragma_Unreferenced             (Id : E) return B;
6993    function Has_Pragma_Unreferenced_Objects     (Id : E) return B;
6994    function Has_Pragma_Unused                   (Id : E) return B;
6995    function Has_Predicates                      (Id : E) return B;
6996    function Has_Primitive_Operations            (Id : E) return B;
6997    function Has_Private_Ancestor                (Id : E) return B;
6998    function Has_Private_Declaration             (Id : E) return B;
6999    function Has_Protected                       (Id : E) return B;
7000    function Has_Qualified_Name                  (Id : E) return B;
7001    function Has_RACW                            (Id : E) return B;
7002    function Has_Record_Rep_Clause               (Id : E) return B;
7003    function Has_Recursive_Call                  (Id : E) return B;
7004    function Has_Shift_Operator                  (Id : E) return B;
7005    function Has_Size_Clause                     (Id : E) return B;
7006    function Has_Small_Clause                    (Id : E) return B;
7007    function Has_Specified_Layout                (Id : E) return B;
7008    function Has_Specified_Stream_Input          (Id : E) return B;
7009    function Has_Specified_Stream_Output         (Id : E) return B;
7010    function Has_Specified_Stream_Read           (Id : E) return B;
7011    function Has_Specified_Stream_Write          (Id : E) return B;
7012    function Has_Static_Discriminants            (Id : E) return B;
7013    function Has_Static_Predicate                (Id : E) return B;
7014    function Has_Static_Predicate_Aspect         (Id : E) return B;
7015    function Has_Storage_Size_Clause             (Id : E) return B;
7016    function Has_Stream_Size_Clause              (Id : E) return B;
7017    function Has_Task                            (Id : E) return B;
7018    function Has_Timing_Event                    (Id : E) return B;
7019    function Has_Thunks                          (Id : E) return B;
7020    function Has_Unchecked_Union                 (Id : E) return B;
7021    function Has_Unknown_Discriminants           (Id : E) return B;
7022    function Has_Visible_Refinement              (Id : E) return B;
7023    function Has_Volatile_Components             (Id : E) return B;
7024    function Has_Xref_Entry                      (Id : E) return B;
7025    function Hiding_Loop_Variable                (Id : E) return E;
7026    function Homonym                             (Id : E) return E;
7027    function Import_Pragma                       (Id : E) return E;
7028    function Incomplete_Actuals                  (Id : E) return L;
7029    function In_Package_Body                     (Id : E) return B;
7030    function In_Private_Part                     (Id : E) return B;
7031    function In_Use                              (Id : E) return B;
7032    function Initialization_Statements           (Id : E) return N;
7033    function Inner_Instances                     (Id : E) return L;
7034    function Interface_Alias                     (Id : E) return E;
7035    function Interface_Name                      (Id : E) return N;
7036    function Interfaces                          (Id : E) return L;
7037    function Is_Abstract_Subprogram              (Id : E) return B;
7038    function Is_Abstract_Type                    (Id : E) return B;
7039    function Is_Access_Constant                  (Id : E) return B;
7040    function Is_Actual_Subtype                   (Id : E) return B;
7041    function Is_Ada_2005_Only                    (Id : E) return B;
7042    function Is_Ada_2012_Only                    (Id : E) return B;
7043    function Is_Aliased                          (Id : E) return B;
7044    function Is_Asynchronous                     (Id : E) return B;
7045    function Is_Atomic                           (Id : E) return B;
7046    function Is_Atomic_Or_VFA                    (Id : E) return B;
7047    function Is_Bit_Packed_Array                 (Id : E) return B;
7048    function Is_Called                           (Id : E) return B;
7049    function Is_Character_Type                   (Id : E) return B;
7050    function Is_Checked_Ghost_Entity             (Id : E) return B;
7051    function Is_Child_Unit                       (Id : E) return B;
7052    function Is_Class_Wide_Equivalent_Type       (Id : E) return B;
7053    function Is_Compilation_Unit                 (Id : E) return B;
7054    function Is_Completely_Hidden                (Id : E) return B;
7055    function Is_Constr_Subt_For_U_Nominal        (Id : E) return B;
7056    function Is_Constr_Subt_For_UN_Aliased       (Id : E) return B;
7057    function Is_Constrained                      (Id : E) return B;
7058    function Is_Constructor                      (Id : E) return B;
7059    function Is_Controlled                       (Id : E) return B;
7060    function Is_Controlling_Formal               (Id : E) return B;
7061    function Is_CPP_Class                        (Id : E) return B;
7062    function Is_Default_Init_Cond_Procedure      (Id : E) return B;
7063    function Is_Descendant_Of_Address            (Id : E) return B;
7064    function Is_Discrim_SO_Function              (Id : E) return B;
7065    function Is_Discriminant_Check_Function      (Id : E) return B;
7066    function Is_Dispatch_Table_Entity            (Id : E) return B;
7067    function Is_Dispatching_Operation            (Id : E) return B;
7068    function Is_Eliminated                       (Id : E) return B;
7069    function Is_Entry_Formal                     (Id : E) return B;
7070    function Is_Exception_Handler                (Id : E) return B;
7071    function Is_Exported                         (Id : E) return B;
7072    function Is_First_Subtype                    (Id : E) return B;
7073    function Is_For_Access_Subtype               (Id : E) return B;
7074    function Is_Frozen                           (Id : E) return B;
7075    function Is_Generic_Instance                 (Id : E) return B;
7076    function Is_Hidden                           (Id : E) return B;
7077    function Is_Hidden_Non_Overridden_Subpgm     (Id : E) return B;
7078    function Is_Hidden_Open_Scope                (Id : E) return B;
7079    function Is_Ignored_Ghost_Entity             (Id : E) return B;
7080    function Is_Immediately_Visible              (Id : E) return B;
7081    function Is_Implementation_Defined           (Id : E) return B;
7082    function Is_Imported                         (Id : E) return B;
7083    function Is_Independent                      (Id : E) return B;
7084    function Is_Inlined                          (Id : E) return B;
7085    function Is_Inlined_Always                   (Id : E) return B;
7086    function Is_Instantiated                     (Id : E) return B;
7087    function Is_Interface                        (Id : E) return B;
7088    function Is_Internal                         (Id : E) return B;
7089    function Is_Interrupt_Handler                (Id : E) return B;
7090    function Is_Intrinsic_Subprogram             (Id : E) return B;
7091    function Is_Invariant_Procedure              (Id : E) return B;
7092    function Is_Itype                            (Id : E) return B;
7093    function Is_Known_Non_Null                   (Id : E) return B;
7094    function Is_Known_Null                       (Id : E) return B;
7095    function Is_Known_Valid                      (Id : E) return B;
7096    function Is_Limited_Composite                (Id : E) return B;
7097    function Is_Limited_Interface                (Id : E) return B;
7098    function Is_Local_Anonymous_Access           (Id : E) return B;
7099    function Is_Machine_Code_Subprogram          (Id : E) return B;
7100    function Is_Non_Static_Subtype               (Id : E) return B;
7101    function Is_Null_Init_Proc                   (Id : E) return B;
7102    function Is_Obsolescent                      (Id : E) return B;
7103    function Is_Only_Out_Parameter               (Id : E) return B;
7104    function Is_Package_Body_Entity              (Id : E) return B;
7105    function Is_Packed                           (Id : E) return B;
7106    function Is_Packed_Array_Impl_Type           (Id : E) return B;
7107    function Is_Potentially_Use_Visible          (Id : E) return B;
7108    function Is_Param_Block_Component_Type       (Id : E) return B;
7109    function Is_Partial_Invariant_Procedure      (Id : E) return B;
7110    function Is_Predicate_Function               (Id : E) return B;
7111    function Is_Predicate_Function_M             (Id : E) return B;
7112    function Is_Preelaborated                    (Id : E) return B;
7113    function Is_Primitive                        (Id : E) return B;
7114    function Is_Primitive_Wrapper                (Id : E) return B;
7115    function Is_Private_Composite                (Id : E) return B;
7116    function Is_Private_Descendant               (Id : E) return B;
7117    function Is_Private_Primitive                (Id : E) return B;
7118    function Is_Processed_Transient              (Id : E) return B;
7119    function Is_Public                           (Id : E) return B;
7120    function Is_Pure                             (Id : E) return B;
7121    function Is_Pure_Unit_Access_Type            (Id : E) return B;
7122    function Is_RACW_Stub_Type                   (Id : E) return B;
7123    function Is_Raised                           (Id : E) return B;
7124    function Is_Remote_Call_Interface            (Id : E) return B;
7125    function Is_Remote_Types                     (Id : E) return B;
7126    function Is_Renaming_Of_Object               (Id : E) return B;
7127    function Is_Return_Object                    (Id : E) return B;
7128    function Is_Safe_To_Reevaluate               (Id : E) return B;
7129    function Is_Shared_Passive                   (Id : E) return B;
7130    function Is_Static_Type                      (Id : E) return B;
7131    function Is_Statically_Allocated             (Id : E) return B;
7132    function Is_Tag                              (Id : E) return B;
7133    function Is_Tagged_Type                      (Id : E) return B;
7134    function Is_Thunk                            (Id : E) return B;
7135    function Is_Trivial_Subprogram               (Id : E) return B;
7136    function Is_True_Constant                    (Id : E) return B;
7137    function Is_Unchecked_Union                  (Id : E) return B;
7138    function Is_Underlying_Record_View           (Id : E) return B;
7139    function Is_Unimplemented                    (Id : E) return B;
7140    function Is_Unsigned_Type                    (Id : E) return B;
7141    function Is_Uplevel_Referenced_Entity        (Id : E) return B;
7142    function Is_Valued_Procedure                 (Id : E) return B;
7143    function Is_Visible_Formal                   (Id : E) return B;
7144    function Is_Visible_Lib_Unit                 (Id : E) return B;
7145    function Is_Volatile                         (Id : E) return B;
7146    function Is_Volatile_Full_Access             (Id : E) return B;
7147    function Itype_Printed                       (Id : E) return B;
7148    function Kill_Elaboration_Checks             (Id : E) return B;
7149    function Kill_Range_Checks                   (Id : E) return B;
7150    function Known_To_Have_Preelab_Init          (Id : E) return B;
7151    function Last_Aggregate_Assignment           (Id : E) return N;
7152    function Last_Assignment                     (Id : E) return N;
7153    function Last_Entity                         (Id : E) return E;
7154    function Limited_View                        (Id : E) return E;
7155    function Linker_Section_Pragma               (Id : E) return N;
7156    function Lit_Indexes                         (Id : E) return E;
7157    function Lit_Strings                         (Id : E) return E;
7158    function Low_Bound_Tested                    (Id : E) return B;
7159    function Machine_Radix_10                    (Id : E) return B;
7160    function Master_Id                           (Id : E) return E;
7161    function Materialize_Entity                  (Id : E) return B;
7162    function May_Inherit_Delayed_Rep_Aspects     (Id : E) return B;
7163    function Mechanism                           (Id : E) return M;
7164    function Modulus                             (Id : E) return U;
7165    function Must_Be_On_Byte_Boundary            (Id : E) return B;
7166    function Must_Have_Preelab_Init              (Id : E) return B;
7167    function Needs_Debug_Info                    (Id : E) return B;
7168    function Needs_No_Actuals                    (Id : E) return B;
7169    function Never_Set_In_Source                 (Id : E) return B;
7170    function Next_Inlined_Subprogram             (Id : E) return E;
7171    function No_Dynamic_Predicate_On_Actual      (Id : E) return B;
7172    function No_Pool_Assigned                    (Id : E) return B;
7173    function No_Predicate_On_Actual              (Id : E) return B;
7174    function No_Return                           (Id : E) return B;
7175    function No_Strict_Aliasing                  (Id : E) return B;
7176    function No_Tagged_Streams_Pragma            (Id : E) return N;
7177    function Non_Binary_Modulus                  (Id : E) return B;
7178    function Non_Limited_View                    (Id : E) return E;
7179    function Nonzero_Is_True                     (Id : E) return B;
7180    function Normalized_First_Bit                (Id : E) return U;
7181    function Normalized_Position                 (Id : E) return U;
7182    function Normalized_Position_Max             (Id : E) return U;
7183    function OK_To_Rename                        (Id : E) return B;
7184    function OK_To_Reorder_Components            (Id : E) return B;
7185    function Optimize_Alignment_Space            (Id : E) return B;
7186    function Optimize_Alignment_Time             (Id : E) return B;
7187    function Original_Access_Type                (Id : E) return E;
7188    function Original_Array_Type                 (Id : E) return E;
7189    function Original_Protected_Subprogram       (Id : E) return N;
7190    function Original_Record_Component           (Id : E) return E;
7191    function Overlays_Constant                   (Id : E) return B;
7192    function Overridden_Operation                (Id : E) return E;
7193    function Package_Instantiation               (Id : E) return N;
7194    function Packed_Array_Impl_Type              (Id : E) return E;
7195    function Parent_Subtype                      (Id : E) return E;
7196    function Part_Of_Constituents                (Id : E) return L;
7197    function Part_Of_References                  (Id : E) return L;
7198    function Partial_View_Has_Unknown_Discr      (Id : E) return B;
7199    function Pending_Access_Types                (Id : E) return L;
7200    function Postconditions_Proc                 (Id : E) return E;
7201    function Predicates_Ignored                  (Id : E) return B;
7202    function Prival                              (Id : E) return E;
7203    function Prival_Link                         (Id : E) return E;
7204    function Private_Dependents                  (Id : E) return L;
7205    function Private_View                        (Id : E) return N;
7206    function Protected_Body_Subprogram           (Id : E) return E;
7207    function Protected_Formal                    (Id : E) return E;
7208    function Protection_Object                   (Id : E) return E;
7209    function Reachable                           (Id : E) return B;
7210    function Referenced                          (Id : E) return B;
7211    function Referenced_As_LHS                   (Id : E) return B;
7212    function Referenced_As_Out_Parameter         (Id : E) return B;
7213    function Refinement_Constituents             (Id : E) return L;
7214    function Register_Exception_Call             (Id : E) return N;
7215    function Related_Array_Object                (Id : E) return E;
7216    function Related_Expression                  (Id : E) return N;
7217    function Related_Instance                    (Id : E) return E;
7218    function Related_Type                        (Id : E) return E;
7219    function Relative_Deadline_Variable          (Id : E) return E;
7220    function Renamed_Entity                      (Id : E) return N;
7221    function Renamed_In_Spec                     (Id : E) return B;
7222    function Renamed_Object                      (Id : E) return N;
7223    function Renaming_Map                        (Id : E) return U;
7224    function Requires_Overriding                 (Id : E) return B;
7225    function Return_Applies_To                   (Id : E) return N;
7226    function Return_Present                      (Id : E) return B;
7227    function Returns_By_Ref                      (Id : E) return B;
7228    function Returns_Limited_View                (Id : E) return B;
7229    function Reverse_Bit_Order                   (Id : E) return B;
7230    function Reverse_Storage_Order               (Id : E) return B;
7231    function Rewritten_For_C                     (Id : E) return B;
7232    function RM_Size                             (Id : E) return U;
7233    function Scalar_Range                        (Id : E) return N;
7234    function Scale_Value                         (Id : E) return U;
7235    function Scope_Depth_Value                   (Id : E) return U;
7236    function Sec_Stack_Needed_For_Return         (Id : E) return B;
7237    function Shadow_Entities                     (Id : E) return S;
7238    function Shared_Var_Procs_Instance           (Id : E) return E;
7239    function Size_Check_Code                     (Id : E) return N;
7240    function Size_Depends_On_Discriminant        (Id : E) return B;
7241    function Size_Known_At_Compile_Time          (Id : E) return B;
7242    function Small_Value                         (Id : E) return R;
7243    function SPARK_Aux_Pragma                    (Id : E) return N;
7244    function SPARK_Aux_Pragma_Inherited          (Id : E) return B;
7245    function SPARK_Pragma                        (Id : E) return N;
7246    function SPARK_Pragma_Inherited              (Id : E) return B;
7247    function Spec_Entity                         (Id : E) return E;
7248    function SSO_Set_High_By_Default             (Id : E) return B;
7249    function SSO_Set_Low_By_Default              (Id : E) return B;
7250    function Static_Discrete_Predicate           (Id : E) return S;
7251    function Static_Elaboration_Desired          (Id : E) return B;
7252    function Static_Initialization               (Id : E) return N;
7253    function Static_Real_Or_String_Predicate     (Id : E) return N;
7254    function Status_Flag_Or_Transient_Decl       (Id : E) return E;
7255    function Storage_Size_Variable               (Id : E) return E;
7256    function Stored_Constraint                   (Id : E) return L;
7257    function Stores_Attribute_Old_Prefix         (Id : E) return B;
7258    function Strict_Alignment                    (Id : E) return B;
7259    function String_Literal_Length               (Id : E) return U;
7260    function String_Literal_Low_Bound            (Id : E) return N;
7261    function Subprograms_For_Type                (Id : E) return L;
7262    function Subps_Index                         (Id : E) return U;
7263    function Suppress_Elaboration_Warnings       (Id : E) return B;
7264    function Suppress_Initialization             (Id : E) return B;
7265    function Suppress_Style_Checks               (Id : E) return B;
7266    function Suppress_Value_Tracking_On_Call     (Id : E) return B;
7267    function Task_Body_Procedure                 (Id : E) return N;
7268    function Thunk_Entity                        (Id : E) return E;
7269    function Treat_As_Volatile                   (Id : E) return B;
7270    function Underlying_Full_View                (Id : E) return E;
7271    function Underlying_Record_View              (Id : E) return E;
7272    function Universal_Aliasing                  (Id : E) return B;
7273    function Unset_Reference                     (Id : E) return N;
7274    function Used_As_Generic_Actual              (Id : E) return B;
7275    function Uses_Lock_Free                      (Id : E) return B;
7276    function Uses_Sec_Stack                      (Id : E) return B;
7277    function Warnings_Off                        (Id : E) return B;
7278    function Warnings_Off_Used                   (Id : E) return B;
7279    function Warnings_Off_Used_Unmodified        (Id : E) return B;
7280    function Warnings_Off_Used_Unreferenced      (Id : E) return B;
7281    function Was_Hidden                          (Id : E) return B;
7282    function Wrapped_Entity                      (Id : E) return E;
7283 
7284    -------------------------------
7285    -- Classification Attributes --
7286    -------------------------------
7287 
7288    --  These functions provide a convenient functional notation for testing
7289    --  whether an Ekind value belongs to a specified kind, for example the
7290    --  function Is_Elementary_Type tests if its argument is in Elementary_Kind.
7291    --  In some cases, the test is of an entity attribute (e.g. in the case of
7292    --  Is_Generic_Type where the Ekind does not provide the needed
7293    --  information).
7294 
7295    function Is_Access_Type                      (Id : E) return B;
7296    function Is_Access_Protected_Subprogram_Type (Id : E) return B;
7297    function Is_Access_Subprogram_Type           (Id : E) return B;
7298    function Is_Aggregate_Type                   (Id : E) return B;
7299    function Is_Array_Type                       (Id : E) return B;
7300    function Is_Assignable                       (Id : E) return B;
7301    function Is_Class_Wide_Type                  (Id : E) return B;
7302    function Is_Composite_Type                   (Id : E) return B;
7303    function Is_Concurrent_Body                  (Id : E) return B;
7304    function Is_Concurrent_Record_Type           (Id : E) return B;
7305    function Is_Concurrent_Type                  (Id : E) return B;
7306    function Is_Decimal_Fixed_Point_Type         (Id : E) return B;
7307    function Is_Digits_Type                      (Id : E) return B;
7308    function Is_Discrete_Or_Fixed_Point_Type     (Id : E) return B;
7309    function Is_Discrete_Type                    (Id : E) return B;
7310    function Is_Elementary_Type                  (Id : E) return B;
7311    function Is_Entry                            (Id : E) return B;
7312    function Is_Enumeration_Type                 (Id : E) return B;
7313    function Is_Fixed_Point_Type                 (Id : E) return B;
7314    function Is_Floating_Point_Type              (Id : E) return B;
7315    function Is_Formal                           (Id : E) return B;
7316    function Is_Formal_Object                    (Id : E) return B;
7317    function Is_Formal_Subprogram                (Id : E) return B;
7318    function Is_Generic_Actual_Subprogram        (Id : E) return B;
7319    function Is_Generic_Actual_Type              (Id : E) return B;
7320    function Is_Generic_Subprogram               (Id : E) return B;
7321    function Is_Generic_Type                     (Id : E) return B;
7322    function Is_Generic_Unit                     (Id : E) return B;
7323    function Is_Ghost_Entity                     (Id : E) return B;
7324    function Is_Incomplete_Or_Private_Type       (Id : E) return B;
7325    function Is_Incomplete_Type                  (Id : E) return B;
7326    function Is_Integer_Type                     (Id : E) return B;
7327    function Is_Limited_Record                   (Id : E) return B;
7328    function Is_Modular_Integer_Type             (Id : E) return B;
7329    function Is_Named_Number                     (Id : E) return B;
7330    function Is_Numeric_Type                     (Id : E) return B;
7331    function Is_Object                           (Id : E) return B;
7332    function Is_Ordinary_Fixed_Point_Type        (Id : E) return B;
7333    function Is_Overloadable                     (Id : E) return B;
7334    function Is_Private_Type                     (Id : E) return B;
7335    function Is_Protected_Type                   (Id : E) return B;
7336    function Is_Real_Type                        (Id : E) return B;
7337    function Is_Record_Type                      (Id : E) return B;
7338    function Is_Scalar_Type                      (Id : E) return B;
7339    function Is_Signed_Integer_Type              (Id : E) return B;
7340    function Is_Subprogram                       (Id : E) return B;
7341    function Is_Subprogram_Or_Generic_Subprogram (Id : E) return B;
7342    function Is_Task_Type                        (Id : E) return B;
7343    function Is_Type                             (Id : E) return B;
7344 
7345    -------------------------------------
7346    -- Synthesized Attribute Functions --
7347    -------------------------------------
7348 
7349    --  The functions in this section synthesize attributes from the tree,
7350    --  so they do not correspond to defined fields in the entity itself.
7351 
7352    function Address_Clause                      (Id : E) return N;
7353    function Aft_Value                           (Id : E) return U;
7354    function Alignment_Clause                    (Id : E) return N;
7355    function Base_Type                           (Id : E) return E;
7356    function Declaration_Node                    (Id : E) return N;
7357    function Designated_Type                     (Id : E) return E;
7358    function First_Component                     (Id : E) return E;
7359    function First_Component_Or_Discriminant     (Id : E) return E;
7360    function First_Formal                        (Id : E) return E;
7361    function First_Formal_With_Extras            (Id : E) return E;
7362    function Has_Attach_Handler                  (Id : E) return B;
7363    function Has_Entries                         (Id : E) return B;
7364    function Has_Foreign_Convention              (Id : E) return B;
7365    function Has_Non_Limited_View                (Id : E) return B;
7366    function Has_Non_Null_Abstract_State         (Id : E) return B;
7367    function Has_Non_Null_Visible_Refinement     (Id : E) return B;
7368    function Has_Null_Abstract_State             (Id : E) return B;
7369    function Has_Null_Visible_Refinement         (Id : E) return B;
7370    function Implementation_Base_Type            (Id : E) return E;
7371    function Is_Base_Type                        (Id : E) return B;
7372    function Is_Boolean_Type                     (Id : E) return B;
7373    function Is_Constant_Object                  (Id : E) return B;
7374    function Is_Controlled_Active                (Id : E) return B;
7375    function Is_Discriminal                      (Id : E) return B;
7376    function Is_Dynamic_Scope                    (Id : E) return B;
7377    function Is_External_State                   (Id : E) return B;
7378    function Is_Finalizer                        (Id : E) return B;
7379    function Is_Null_State                       (Id : E) return B;
7380    function Is_Package_Or_Generic_Package       (Id : E) return B;
7381    function Is_Packed_Array                     (Id : E) return B;
7382    function Is_Prival                           (Id : E) return B;
7383    function Is_Protected_Component              (Id : E) return B;
7384    function Is_Protected_Interface              (Id : E) return B;
7385    function Is_Protected_Record_Type            (Id : E) return B;
7386    function Is_Standard_Character_Type          (Id : E) return B;
7387    function Is_Standard_String_Type             (Id : E) return B;
7388    function Is_String_Type                      (Id : E) return B;
7389    function Is_Synchronized_Interface           (Id : E) return B;
7390    function Is_Synchronized_State               (Id : E) return B;
7391    function Is_Task_Interface                   (Id : E) return B;
7392    function Is_Task_Record_Type                 (Id : E) return B;
7393    function Is_Wrapper_Package                  (Id : E) return B;
7394    function Last_Formal                         (Id : E) return E;
7395    function Machine_Emax_Value                  (Id : E) return U;
7396    function Machine_Emin_Value                  (Id : E) return U;
7397    function Machine_Mantissa_Value              (Id : E) return U;
7398    function Machine_Radix_Value                 (Id : E) return U;
7399    function Model_Emin_Value                    (Id : E) return U;
7400    function Model_Epsilon_Value                 (Id : E) return R;
7401    function Model_Mantissa_Value                (Id : E) return U;
7402    function Model_Small_Value                   (Id : E) return R;
7403    function Next_Component                      (Id : E) return E;
7404    function Next_Component_Or_Discriminant      (Id : E) return E;
7405    function Next_Discriminant                   (Id : E) return E;
7406    function Next_Formal                         (Id : E) return E;
7407    function Next_Formal_With_Extras             (Id : E) return E;
7408    function Next_Literal                        (Id : E) return E;
7409    function Next_Stored_Discriminant            (Id : E) return E;
7410    function Number_Dimensions                   (Id : E) return Pos;
7411    function Number_Entries                      (Id : E) return Nat;
7412    function Number_Formals                      (Id : E) return Pos;
7413    function Parameter_Mode                      (Id : E) return Formal_Kind;
7414    function Primitive_Operations                (Id : E) return L;
7415    function Root_Type                           (Id : E) return E;
7416    function Safe_Emax_Value                     (Id : E) return U;
7417    function Safe_First_Value                    (Id : E) return R;
7418    function Safe_Last_Value                     (Id : E) return R;
7419    function Scope_Depth_Set                     (Id : E) return B;
7420    function Size_Clause                         (Id : E) return N;
7421    function Stream_Size_Clause                  (Id : E) return N;
7422    function Type_High_Bound                     (Id : E) return N;
7423    function Type_Low_Bound                      (Id : E) return N;
7424    function Underlying_Type                     (Id : E) return E;
7425 
7426    ----------------------------------------------
7427    -- Type Representation Attribute Predicates --
7428    ----------------------------------------------
7429 
7430    --  These predicates test the setting of the indicated attribute. If the
7431    --  value has been set, then Known is True, and Unknown is False. If no
7432    --  value is set, then Known is False and Unknown is True. The Known_Static
7433    --  predicate is true only if the value is set (Known) and is set to a
7434    --  compile time known value. Note that in the case of Alignment and
7435    --  Normalized_First_Bit, dynamic values are not possible, so we do not
7436    --  need a separate Known_Static calls in these cases. The not set (unknown)
7437    --  values are as follows:
7438 
7439    --    Alignment               Uint_0 or No_Uint
7440    --    Component_Size          Uint_0 or No_Uint
7441    --    Component_Bit_Offset    No_Uint
7442    --    Digits_Value            Uint_0 or No_Uint
7443    --    Esize                   Uint_0 or No_Uint
7444    --    Normalized_First_Bit    No_Uint
7445    --    Normalized_Position     No_Uint
7446    --    Normalized_Position_Max No_Uint
7447    --    RM_Size                 Uint_0 or No_Uint
7448 
7449    --  It would be cleaner to use No_Uint in all these cases, but historically
7450    --  we chose to use Uint_0 at first, and the change over will take time ???
7451    --  This is particularly true for the RM_Size field, where a value of zero
7452    --  is legitimate. We deal with this by a considering that the value is
7453    --  always known static for discrete types (and no other types can have
7454    --  an RM_Size value of zero).
7455 
7456    --  In two cases, Known_Static_Esize and Known_Static_RM_Size, there is one
7457    --  more consideration, which is that we always return False for generic
7458    --  types. Within a template, the size can look known, because of the fake
7459    --  size values we put in template types, but they are not really known and
7460    --  anyone testing if they are known within the template should get False as
7461    --  a result to prevent incorrect assumptions.
7462 
7463    function Known_Alignment                       (E : Entity_Id) return B;
7464    function Known_Component_Bit_Offset            (E : Entity_Id) return B;
7465    function Known_Component_Size                  (E : Entity_Id) return B;
7466    function Known_Esize                           (E : Entity_Id) return B;
7467    function Known_Normalized_First_Bit            (E : Entity_Id) return B;
7468    function Known_Normalized_Position             (E : Entity_Id) return B;
7469    function Known_Normalized_Position_Max         (E : Entity_Id) return B;
7470    function Known_RM_Size                         (E : Entity_Id) return B;
7471 
7472    function Known_Static_Component_Bit_Offset     (E : Entity_Id) return B;
7473    function Known_Static_Component_Size           (E : Entity_Id) return B;
7474    function Known_Static_Esize                    (E : Entity_Id) return B;
7475    function Known_Static_Normalized_First_Bit     (E : Entity_Id) return B;
7476    function Known_Static_Normalized_Position      (E : Entity_Id) return B;
7477    function Known_Static_Normalized_Position_Max  (E : Entity_Id) return B;
7478    function Known_Static_RM_Size                  (E : Entity_Id) return B;
7479 
7480    function Unknown_Alignment                     (E : Entity_Id) return B;
7481    function Unknown_Component_Bit_Offset          (E : Entity_Id) return B;
7482    function Unknown_Component_Size                (E : Entity_Id) return B;
7483    function Unknown_Esize                         (E : Entity_Id) return B;
7484    function Unknown_Normalized_First_Bit          (E : Entity_Id) return B;
7485    function Unknown_Normalized_Position           (E : Entity_Id) return B;
7486    function Unknown_Normalized_Position_Max       (E : Entity_Id) return B;
7487    function Unknown_RM_Size                       (E : Entity_Id) return B;
7488 
7489    ------------------------------
7490    -- Attribute Set Procedures --
7491    ------------------------------
7492 
7493    procedure Set_Abstract_States                 (Id : E; V : L);
7494    procedure Set_Accept_Address                  (Id : E; V : L);
7495    procedure Set_Access_Disp_Table               (Id : E; V : L);
7496    procedure Set_Activation_Record_Component     (Id : E; V : E);
7497    procedure Set_Actual_Subtype                  (Id : E; V : E);
7498    procedure Set_Address_Taken                   (Id : E; V : B := True);
7499    procedure Set_Alias                           (Id : E; V : E);
7500    procedure Set_Alignment                       (Id : E; V : U);
7501    procedure Set_Anonymous_Master                (Id : E; V : E);
7502    procedure Set_Anonymous_Object                (Id : E; V : E);
7503    procedure Set_Associated_Entity               (Id : E; V : E);
7504    procedure Set_Associated_Formal_Package       (Id : E; V : E);
7505    procedure Set_Associated_Node_For_Itype       (Id : E; V : N);
7506    procedure Set_Associated_Storage_Pool         (Id : E; V : E);
7507    procedure Set_Barrier_Function                (Id : E; V : N);
7508    procedure Set_BIP_Initialization_Call         (Id : E; V : N);
7509    procedure Set_Block_Node                      (Id : E; V : N);
7510    procedure Set_Body_Entity                     (Id : E; V : E);
7511    procedure Set_Body_Needed_For_SAL             (Id : E; V : B := True);
7512    procedure Set_Body_References                 (Id : E; V : L);
7513    procedure Set_C_Pass_By_Copy                  (Id : E; V : B := True);
7514    procedure Set_Can_Never_Be_Null               (Id : E; V : B := True);
7515    procedure Set_Can_Use_Internal_Rep            (Id : E; V : B := True);
7516    procedure Set_Checks_May_Be_Suppressed        (Id : E; V : B := True);
7517    procedure Set_Class_Wide_Postconds            (Id : E; V : S);
7518    procedure Set_Class_Wide_Preconds             (Id : E; V : S);
7519    procedure Set_Class_Wide_Type                 (Id : E; V : E);
7520    procedure Set_Cloned_Subtype                  (Id : E; V : E);
7521    procedure Set_Component_Alignment             (Id : E; V : C);
7522    procedure Set_Component_Bit_Offset            (Id : E; V : U);
7523    procedure Set_Component_Clause                (Id : E; V : N);
7524    procedure Set_Component_Size                  (Id : E; V : U);
7525    procedure Set_Component_Type                  (Id : E; V : E);
7526    procedure Set_Contains_Ignored_Ghost_Code     (Id : E; V : B := True);
7527    procedure Set_Contract                        (Id : E; V : N);
7528    procedure Set_Contract_Wrapper                (Id : E; V : E);
7529    procedure Set_Corresponding_Concurrent_Type   (Id : E; V : E);
7530    procedure Set_Corresponding_Discriminant      (Id : E; V : E);
7531    procedure Set_Corresponding_Equality          (Id : E; V : E);
7532    procedure Set_Corresponding_Function          (Id : E; V : E);
7533    procedure Set_Corresponding_Procedure         (Id : E; V : E);
7534    procedure Set_Corresponding_Protected_Entry   (Id : E; V : E);
7535    procedure Set_Corresponding_Record_Type       (Id : E; V : E);
7536    procedure Set_Corresponding_Remote_Type       (Id : E; V : E);
7537    procedure Set_CR_Discriminant                 (Id : E; V : E);
7538    procedure Set_Current_Use_Clause              (Id : E; V : E);
7539    procedure Set_Current_Value                   (Id : E; V : N);
7540    procedure Set_Debug_Info_Off                  (Id : E; V : B := True);
7541    procedure Set_Debug_Renaming_Link             (Id : E; V : E);
7542    procedure Set_Default_Aspect_Component_Value  (Id : E; V : N);
7543    procedure Set_Default_Aspect_Value            (Id : E; V : N);
7544    procedure Set_Default_Expr_Function           (Id : E; V : E);
7545    procedure Set_Default_Expressions_Processed   (Id : E; V : B := True);
7546    procedure Set_Default_Value                   (Id : E; V : N);
7547    procedure Set_Delay_Cleanups                  (Id : E; V : B := True);
7548    procedure Set_Delay_Subprogram_Descriptors    (Id : E; V : B := True);
7549    procedure Set_Delta_Value                     (Id : E; V : R);
7550    procedure Set_Dependent_Instances             (Id : E; V : L);
7551    procedure Set_Depends_On_Private              (Id : E; V : B := True);
7552    procedure Set_Derived_Type_Link               (Id : E; V : E);
7553    procedure Set_Digits_Value                    (Id : E; V : U);
7554    procedure Set_Predicates_Ignored              (Id : E; V : B);
7555    procedure Set_Direct_Primitive_Operations     (Id : E; V : L);
7556    procedure Set_Directly_Designated_Type        (Id : E; V : E);
7557    procedure Set_Disable_Controlled              (Id : E; V : B := True);
7558    procedure Set_Discard_Names                   (Id : E; V : B := True);
7559    procedure Set_Discriminal                     (Id : E; V : E);
7560    procedure Set_Discriminal_Link                (Id : E; V : E);
7561    procedure Set_Discriminant_Checking_Func      (Id : E; V : E);
7562    procedure Set_Discriminant_Constraint         (Id : E; V : L);
7563    procedure Set_Discriminant_Default_Value      (Id : E; V : N);
7564    procedure Set_Discriminant_Number             (Id : E; V : U);
7565    procedure Set_Dispatch_Table_Wrappers         (Id : E; V : L);
7566    procedure Set_DT_Entry_Count                  (Id : E; V : U);
7567    procedure Set_DT_Offset_To_Top_Func           (Id : E; V : E);
7568    procedure Set_DT_Position                     (Id : E; V : U);
7569    procedure Set_DTC_Entity                      (Id : E; V : E);
7570    procedure Set_Elaborate_Body_Desirable        (Id : E; V : B := True);
7571    procedure Set_Elaboration_Entity              (Id : E; V : E);
7572    procedure Set_Elaboration_Entity_Required     (Id : E; V : B := True);
7573    procedure Set_Encapsulating_State             (Id : E; V : E);
7574    procedure Set_Enclosing_Scope                 (Id : E; V : E);
7575    procedure Set_Entry_Accepted                  (Id : E; V : B := True);
7576    procedure Set_Entry_Bodies_Array              (Id : E; V : E);
7577    procedure Set_Entry_Cancel_Parameter          (Id : E; V : E);
7578    procedure Set_Entry_Component                 (Id : E; V : E);
7579    procedure Set_Entry_Formal                    (Id : E; V : E);
7580    procedure Set_Entry_Index_Constant            (Id : E; V : E);
7581    procedure Set_Entry_Parameters_Type           (Id : E; V : E);
7582    procedure Set_Enum_Pos_To_Rep                 (Id : E; V : E);
7583    procedure Set_Enumeration_Pos                 (Id : E; V : U);
7584    procedure Set_Enumeration_Rep                 (Id : E; V : U);
7585    procedure Set_Enumeration_Rep_Expr            (Id : E; V : N);
7586    procedure Set_Equivalent_Type                 (Id : E; V : E);
7587    procedure Set_Esize                           (Id : E; V : U);
7588    procedure Set_Extra_Accessibility             (Id : E; V : E);
7589    procedure Set_Extra_Accessibility_Of_Result   (Id : E; V : E);
7590    procedure Set_Extra_Constrained               (Id : E; V : E);
7591    procedure Set_Extra_Formal                    (Id : E; V : E);
7592    procedure Set_Extra_Formals                   (Id : E; V : E);
7593    procedure Set_Finalization_Master             (Id : E; V : E);
7594    procedure Set_Finalize_Storage_Only           (Id : E; V : B := True);
7595    procedure Set_Finalizer                       (Id : E; V : E);
7596    procedure Set_First_Entity                    (Id : E; V : E);
7597    procedure Set_First_Exit_Statement            (Id : E; V : N);
7598    procedure Set_First_Index                     (Id : E; V : N);
7599    procedure Set_First_Literal                   (Id : E; V : E);
7600    procedure Set_First_Private_Entity            (Id : E; V : E);
7601    procedure Set_First_Rep_Item                  (Id : E; V : N);
7602    procedure Set_Float_Rep                       (Id : E; V : F);
7603    procedure Set_Freeze_Node                     (Id : E; V : N);
7604    procedure Set_From_Limited_With               (Id : E; V : B := True);
7605    procedure Set_Full_View                       (Id : E; V : E);
7606    procedure Set_Generic_Homonym                 (Id : E; V : E);
7607    procedure Set_Generic_Renamings               (Id : E; V : L);
7608    procedure Set_Handler_Records                 (Id : E; V : S);
7609    procedure Set_Has_Aliased_Components          (Id : E; V : B := True);
7610    procedure Set_Has_Alignment_Clause            (Id : E; V : B := True);
7611    procedure Set_Has_All_Calls_Remote            (Id : E; V : B := True);
7612    procedure Set_Has_Atomic_Components           (Id : E; V : B := True);
7613    procedure Set_Has_Biased_Representation       (Id : E; V : B := True);
7614    procedure Set_Has_Completion                  (Id : E; V : B := True);
7615    procedure Set_Has_Completion_In_Body          (Id : E; V : B := True);
7616    procedure Set_Has_Complex_Representation      (Id : E; V : B := True);
7617    procedure Set_Has_Component_Size_Clause       (Id : E; V : B := True);
7618    procedure Set_Has_Constrained_Partial_View    (Id : E; V : B := True);
7619    procedure Set_Has_Contiguous_Rep              (Id : E; V : B := True);
7620    procedure Set_Has_Controlled_Component        (Id : E; V : B := True);
7621    procedure Set_Has_Controlling_Result          (Id : E; V : B := True);
7622    procedure Set_Has_Convention_Pragma           (Id : E; V : B := True);
7623    procedure Set_Has_Default_Aspect              (Id : E; V : B := True);
7624    procedure Set_Has_Default_Init_Cond           (Id : E; V : B := True);
7625    procedure Set_Has_Delayed_Aspects             (Id : E; V : B := True);
7626    procedure Set_Has_Delayed_Freeze              (Id : E; V : B := True);
7627    procedure Set_Has_Delayed_Rep_Aspects         (Id : E; V : B := True);
7628    procedure Set_Has_Discriminants               (Id : E; V : B := True);
7629    procedure Set_Has_Dispatch_Table              (Id : E; V : B := True);
7630    procedure Set_Has_Dynamic_Predicate_Aspect    (Id : E; V : B := True);
7631    procedure Set_Has_Enumeration_Rep_Clause      (Id : E; V : B := True);
7632    procedure Set_Has_Exit                        (Id : E; V : B := True);
7633    procedure Set_Has_Expanded_Contract           (Id : E; V : B := True);
7634    procedure Set_Has_Forward_Instantiation       (Id : E; V : B := True);
7635    procedure Set_Has_Fully_Qualified_Name        (Id : E; V : B := True);
7636    procedure Set_Has_Gigi_Rep_Item               (Id : E; V : B := True);
7637    procedure Set_Has_Homonym                     (Id : E; V : B := True);
7638    procedure Set_Has_Implicit_Dereference        (Id : E; V : B := True);
7639    procedure Set_Has_Independent_Components      (Id : E; V : B := True);
7640    procedure Set_Has_Inheritable_Invariants      (Id : E; V : B := True);
7641    procedure Set_Has_Inherited_Default_Init_Cond (Id : E; V : B := True);
7642    procedure Set_Has_Inherited_Invariants        (Id : E; V : B := True);
7643    procedure Set_Has_Initial_Value               (Id : E; V : B := True);
7644    procedure Set_Has_Loop_Entry_Attributes       (Id : E; V : B := True);
7645    procedure Set_Has_Machine_Radix_Clause        (Id : E; V : B := True);
7646    procedure Set_Has_Master_Entity               (Id : E; V : B := True);
7647    procedure Set_Has_Missing_Return              (Id : E; V : B := True);
7648    procedure Set_Has_Nested_Block_With_Handler   (Id : E; V : B := True);
7649    procedure Set_Has_Nested_Subprogram           (Id : E; V : B := True);
7650    procedure Set_Has_Non_Standard_Rep            (Id : E; V : B := True);
7651    procedure Set_Has_Object_Size_Clause          (Id : E; V : B := True);
7652    procedure Set_Has_Out_Or_In_Out_Parameter     (Id : E; V : B := True);
7653    procedure Set_Has_Own_Invariants              (Id : E; V : B := True);
7654    procedure Set_Has_Per_Object_Constraint       (Id : E; V : B := True);
7655    procedure Set_Has_Pragma_Controlled           (Id : E; V : B := True);
7656    procedure Set_Has_Pragma_Elaborate_Body       (Id : E; V : B := True);
7657    procedure Set_Has_Pragma_Inline               (Id : E; V : B := True);
7658    procedure Set_Has_Pragma_Inline_Always        (Id : E; V : B := True);
7659    procedure Set_Has_Pragma_No_Inline            (Id : E; V : B := True);
7660    procedure Set_Has_Pragma_Ordered              (Id : E; V : B := True);
7661    procedure Set_Has_Pragma_Pack                 (Id : E; V : B := True);
7662    procedure Set_Has_Pragma_Preelab_Init         (Id : E; V : B := True);
7663    procedure Set_Has_Pragma_Pure                 (Id : E; V : B := True);
7664    procedure Set_Has_Pragma_Pure_Function        (Id : E; V : B := True);
7665    procedure Set_Has_Pragma_Thread_Local_Storage (Id : E; V : B := True);
7666    procedure Set_Has_Pragma_Unmodified           (Id : E; V : B := True);
7667    procedure Set_Has_Pragma_Unreferenced         (Id : E; V : B := True);
7668    procedure Set_Has_Pragma_Unreferenced_Objects (Id : E; V : B := True);
7669    procedure Set_Has_Pragma_Unused               (Id : E; V : B := True);
7670    procedure Set_Has_Predicates                  (Id : E; V : B := True);
7671    procedure Set_Has_Primitive_Operations        (Id : E; V : B := True);
7672    procedure Set_Has_Private_Ancestor            (Id : E; V : B := True);
7673    procedure Set_Has_Private_Declaration         (Id : E; V : B := True);
7674    procedure Set_Has_Protected                   (Id : E; V : B := True);
7675    procedure Set_Has_Qualified_Name              (Id : E; V : B := True);
7676    procedure Set_Has_RACW                        (Id : E; V : B := True);
7677    procedure Set_Has_Record_Rep_Clause           (Id : E; V : B := True);
7678    procedure Set_Has_Recursive_Call              (Id : E; V : B := True);
7679    procedure Set_Has_Shift_Operator              (Id : E; V : B := True);
7680    procedure Set_Has_Size_Clause                 (Id : E; V : B := True);
7681    procedure Set_Has_Small_Clause                (Id : E; V : B := True);
7682    procedure Set_Has_Specified_Layout            (Id : E; V : B := True);
7683    procedure Set_Has_Specified_Stream_Input      (Id : E; V : B := True);
7684    procedure Set_Has_Specified_Stream_Output     (Id : E; V : B := True);
7685    procedure Set_Has_Specified_Stream_Read       (Id : E; V : B := True);
7686    procedure Set_Has_Specified_Stream_Write      (Id : E; V : B := True);
7687    procedure Set_Has_Static_Discriminants        (Id : E; V : B := True);
7688    procedure Set_Has_Static_Predicate            (Id : E; V : B := True);
7689    procedure Set_Has_Static_Predicate_Aspect     (Id : E; V : B := True);
7690    procedure Set_Has_Storage_Size_Clause         (Id : E; V : B := True);
7691    procedure Set_Has_Stream_Size_Clause          (Id : E; V : B := True);
7692    procedure Set_Has_Task                        (Id : E; V : B := True);
7693    procedure Set_Has_Timing_Event                (Id : E; V : B := True);
7694    procedure Set_Has_Thunks                      (Id : E; V : B := True);
7695    procedure Set_Has_Unchecked_Union             (Id : E; V : B := True);
7696    procedure Set_Has_Unknown_Discriminants       (Id : E; V : B := True);
7697    procedure Set_Has_Visible_Refinement          (Id : E; V : B := True);
7698    procedure Set_Has_Volatile_Components         (Id : E; V : B := True);
7699    procedure Set_Has_Xref_Entry                  (Id : E; V : B := True);
7700    procedure Set_Hiding_Loop_Variable            (Id : E; V : E);
7701    procedure Set_Homonym                         (Id : E; V : E);
7702    procedure Set_Import_Pragma                   (Id : E; V : E);
7703    procedure Set_Incomplete_Actuals              (Id : E; V : L);
7704    procedure Set_In_Package_Body                 (Id : E; V : B := True);
7705    procedure Set_In_Private_Part                 (Id : E; V : B := True);
7706    procedure Set_In_Use                          (Id : E; V : B := True);
7707    procedure Set_Initialization_Statements       (Id : E; V : N);
7708    procedure Set_Inner_Instances                 (Id : E; V : L);
7709    procedure Set_Interface_Alias                 (Id : E; V : E);
7710    procedure Set_Interface_Name                  (Id : E; V : N);
7711    procedure Set_Interfaces                      (Id : E; V : L);
7712    procedure Set_Is_Abstract_Subprogram          (Id : E; V : B := True);
7713    procedure Set_Is_Abstract_Type                (Id : E; V : B := True);
7714    procedure Set_Is_Access_Constant              (Id : E; V : B := True);
7715    procedure Set_Is_Actual_Subtype               (Id : E; V : B := True);
7716    procedure Set_Is_Ada_2005_Only                (Id : E; V : B := True);
7717    procedure Set_Is_Ada_2012_Only                (Id : E; V : B := True);
7718    procedure Set_Is_Aliased                      (Id : E; V : B := True);
7719    procedure Set_Is_Asynchronous                 (Id : E; V : B := True);
7720    procedure Set_Is_Atomic                       (Id : E; V : B := True);
7721    procedure Set_Is_Bit_Packed_Array             (Id : E; V : B := True);
7722    procedure Set_Is_Called                       (Id : E; V : B := True);
7723    procedure Set_Is_Character_Type               (Id : E; V : B := True);
7724    procedure Set_Is_Checked_Ghost_Entity         (Id : E; V : B := True);
7725    procedure Set_Is_Child_Unit                   (Id : E; V : B := True);
7726    procedure Set_Is_Class_Wide_Equivalent_Type   (Id : E; V : B := True);
7727    procedure Set_Is_Compilation_Unit             (Id : E; V : B := True);
7728    procedure Set_Is_Completely_Hidden            (Id : E; V : B := True);
7729    procedure Set_Is_Concurrent_Record_Type       (Id : E; V : B := True);
7730    procedure Set_Is_Constr_Subt_For_U_Nominal    (Id : E; V : B := True);
7731    procedure Set_Is_Constr_Subt_For_UN_Aliased   (Id : E; V : B := True);
7732    procedure Set_Is_Constrained                  (Id : E; V : B := True);
7733    procedure Set_Is_Constructor                  (Id : E; V : B := True);
7734    procedure Set_Is_Controlled                   (Id : E; V : B := True);
7735    procedure Set_Is_Controlling_Formal           (Id : E; V : B := True);
7736    procedure Set_Is_CPP_Class                    (Id : E; V : B := True);
7737    procedure Set_Is_Default_Init_Cond_Procedure  (Id : E; V : B := True);
7738    procedure Set_Is_Descendant_Of_Address        (Id : E; V : B := True);
7739    procedure Set_Is_Discrim_SO_Function          (Id : E; V : B := True);
7740    procedure Set_Is_Discriminant_Check_Function  (Id : E; V : B := True);
7741    procedure Set_Is_Dispatch_Table_Entity        (Id : E; V : B := True);
7742    procedure Set_Is_Dispatching_Operation        (Id : E; V : B := True);
7743    procedure Set_Is_Eliminated                   (Id : E; V : B := True);
7744    procedure Set_Is_Entry_Formal                 (Id : E; V : B := True);
7745    procedure Set_Is_Exception_Handler            (Id : E; V : B := True);
7746    procedure Set_Is_Exported                     (Id : E; V : B := True);
7747    procedure Set_Is_First_Subtype                (Id : E; V : B := True);
7748    procedure Set_Is_For_Access_Subtype           (Id : E; V : B := True);
7749    procedure Set_Is_Formal_Subprogram            (Id : E; V : B := True);
7750    procedure Set_Is_Frozen                       (Id : E; V : B := True);
7751    procedure Set_Is_Generic_Actual_Subprogram    (Id : E; V : B := True);
7752    procedure Set_Is_Generic_Actual_Type          (Id : E; V : B := True);
7753    procedure Set_Is_Generic_Instance             (Id : E; V : B := True);
7754    procedure Set_Is_Generic_Type                 (Id : E; V : B := True);
7755    procedure Set_Is_Hidden                       (Id : E; V : B := True);
7756    procedure Set_Is_Hidden_Non_Overridden_Subpgm (Id : E; V : B := True);
7757    procedure Set_Is_Hidden_Open_Scope            (Id : E; V : B := True);
7758    procedure Set_Is_Ignored_Ghost_Entity         (Id : E; V : B := True);
7759    procedure Set_Is_Immediately_Visible          (Id : E; V : B := True);
7760    procedure Set_Is_Implementation_Defined       (Id : E; V : B := True);
7761    procedure Set_Is_Imported                     (Id : E; V : B := True);
7762    procedure Set_Is_Independent                  (Id : E; V : B := True);
7763    procedure Set_Is_Inlined                      (Id : E; V : B := True);
7764    procedure Set_Is_Inlined_Always               (Id : E; V : B := True);
7765    procedure Set_Is_Instantiated                 (Id : E; V : B := True);
7766    procedure Set_Is_Interface                    (Id : E; V : B := True);
7767    procedure Set_Is_Internal                     (Id : E; V : B := True);
7768    procedure Set_Is_Interrupt_Handler            (Id : E; V : B := True);
7769    procedure Set_Is_Intrinsic_Subprogram         (Id : E; V : B := True);
7770    procedure Set_Is_Invariant_Procedure          (Id : E; V : B := True);
7771    procedure Set_Is_Itype                        (Id : E; V : B := True);
7772    procedure Set_Is_Known_Non_Null               (Id : E; V : B := True);
7773    procedure Set_Is_Known_Null                   (Id : E; V : B := True);
7774    procedure Set_Is_Known_Valid                  (Id : E; V : B := True);
7775    procedure Set_Is_Limited_Composite            (Id : E; V : B := True);
7776    procedure Set_Is_Limited_Interface            (Id : E; V : B := True);
7777    procedure Set_Is_Limited_Record               (Id : E; V : B := True);
7778    procedure Set_Is_Local_Anonymous_Access       (Id : E; V : B := True);
7779    procedure Set_Is_Machine_Code_Subprogram      (Id : E; V : B := True);
7780    procedure Set_Is_Non_Static_Subtype           (Id : E; V : B := True);
7781    procedure Set_Is_Null_Init_Proc               (Id : E; V : B := True);
7782    procedure Set_Is_Obsolescent                  (Id : E; V : B := True);
7783    procedure Set_Is_Only_Out_Parameter           (Id : E; V : B := True);
7784    procedure Set_Is_Package_Body_Entity          (Id : E; V : B := True);
7785    procedure Set_Is_Packed                       (Id : E; V : B := True);
7786    procedure Set_Is_Packed_Array_Impl_Type       (Id : E; V : B := True);
7787    procedure Set_Is_Param_Block_Component_Type   (Id : E; V : B := True);
7788    procedure Set_Is_Partial_Invariant_Procedure  (Id : E; V : B := True);
7789    procedure Set_Is_Potentially_Use_Visible      (Id : E; V : B := True);
7790    procedure Set_Is_Predicate_Function           (Id : E; V : B := True);
7791    procedure Set_Is_Predicate_Function_M         (Id : E; V : B := True);
7792    procedure Set_Is_Preelaborated                (Id : E; V : B := True);
7793    procedure Set_Is_Primitive                    (Id : E; V : B := True);
7794    procedure Set_Is_Primitive_Wrapper            (Id : E; V : B := True);
7795    procedure Set_Is_Private_Composite            (Id : E; V : B := True);
7796    procedure Set_Is_Private_Descendant           (Id : E; V : B := True);
7797    procedure Set_Is_Private_Primitive            (Id : E; V : B := True);
7798    procedure Set_Is_Processed_Transient          (Id : E; V : B := True);
7799    procedure Set_Is_Public                       (Id : E; V : B := True);
7800    procedure Set_Is_Pure                         (Id : E; V : B := True);
7801    procedure Set_Is_Pure_Unit_Access_Type        (Id : E; V : B := True);
7802    procedure Set_Is_RACW_Stub_Type               (Id : E; V : B := True);
7803    procedure Set_Is_Raised                       (Id : E; V : B := True);
7804    procedure Set_Is_Remote_Call_Interface        (Id : E; V : B := True);
7805    procedure Set_Is_Remote_Types                 (Id : E; V : B := True);
7806    procedure Set_Is_Renaming_Of_Object           (Id : E; V : B := True);
7807    procedure Set_Is_Return_Object                (Id : E; V : B := True);
7808    procedure Set_Is_Safe_To_Reevaluate           (Id : E; V : B := True);
7809    procedure Set_Is_Shared_Passive               (Id : E; V : B := True);
7810    procedure Set_Is_Static_Type                  (Id : E; V : B := True);
7811    procedure Set_Is_Statically_Allocated         (Id : E; V : B := True);
7812    procedure Set_Is_Tag                          (Id : E; V : B := True);
7813    procedure Set_Is_Tagged_Type                  (Id : E; V : B := True);
7814    procedure Set_Is_Thunk                        (Id : E; V : B := True);
7815    procedure Set_Is_Trivial_Subprogram           (Id : E; V : B := True);
7816    procedure Set_Is_True_Constant                (Id : E; V : B := True);
7817    procedure Set_Is_Unchecked_Union              (Id : E; V : B := True);
7818    procedure Set_Is_Underlying_Record_View       (Id : E; V : B := True);
7819    procedure Set_Is_Unimplemented                (Id : E; V : B := True);
7820    procedure Set_Is_Unsigned_Type                (Id : E; V : B := True);
7821    procedure Set_Is_Uplevel_Referenced_Entity    (Id : E; V : B := True);
7822    procedure Set_Is_Valued_Procedure             (Id : E; V : B := True);
7823    procedure Set_Is_Visible_Formal               (Id : E; V : B := True);
7824    procedure Set_Is_Visible_Lib_Unit             (Id : E; V : B := True);
7825    procedure Set_Is_Volatile                     (Id : E; V : B := True);
7826    procedure Set_Is_Volatile_Full_Access         (Id : E; V : B := True);
7827    procedure Set_Itype_Printed                   (Id : E; V : B := True);
7828    procedure Set_Kill_Elaboration_Checks         (Id : E; V : B := True);
7829    procedure Set_Kill_Range_Checks               (Id : E; V : B := True);
7830    procedure Set_Known_To_Have_Preelab_Init      (Id : E; V : B := True);
7831    procedure Set_Last_Aggregate_Assignment       (Id : E; V : N);
7832    procedure Set_Last_Assignment                 (Id : E; V : N);
7833    procedure Set_Last_Entity                     (Id : E; V : E);
7834    procedure Set_Limited_View                    (Id : E; V : E);
7835    procedure Set_Linker_Section_Pragma           (Id : E; V : N);
7836    procedure Set_Lit_Indexes                     (Id : E; V : E);
7837    procedure Set_Lit_Strings                     (Id : E; V : E);
7838    procedure Set_Low_Bound_Tested                (Id : E; V : B := True);
7839    procedure Set_Machine_Radix_10                (Id : E; V : B := True);
7840    procedure Set_Master_Id                       (Id : E; V : E);
7841    procedure Set_Materialize_Entity              (Id : E; V : B := True);
7842    procedure Set_May_Inherit_Delayed_Rep_Aspects (Id : E; V : B := True);
7843    procedure Set_Mechanism                       (Id : E; V : M);
7844    procedure Set_Modulus                         (Id : E; V : U);
7845    procedure Set_Must_Be_On_Byte_Boundary        (Id : E; V : B := True);
7846    procedure Set_Must_Have_Preelab_Init          (Id : E; V : B := True);
7847    procedure Set_Needs_Debug_Info                (Id : E; V : B := True);
7848    procedure Set_Needs_No_Actuals                (Id : E; V : B := True);
7849    procedure Set_Never_Set_In_Source             (Id : E; V : B := True);
7850    procedure Set_Next_Inlined_Subprogram         (Id : E; V : E);
7851    procedure Set_No_Dynamic_Predicate_On_Actual  (Id : E; V : B := True);
7852    procedure Set_No_Pool_Assigned                (Id : E; V : B := True);
7853    procedure Set_No_Predicate_On_Actual          (Id : E; V : B := True);
7854    procedure Set_No_Return                       (Id : E; V : B := True);
7855    procedure Set_No_Strict_Aliasing              (Id : E; V : B := True);
7856    procedure Set_No_Tagged_Streams_Pragma        (Id : E; V : N);
7857    procedure Set_Non_Binary_Modulus              (Id : E; V : B := True);
7858    procedure Set_Non_Limited_View                (Id : E; V : E);
7859    procedure Set_Nonzero_Is_True                 (Id : E; V : B := True);
7860    procedure Set_Normalized_First_Bit            (Id : E; V : U);
7861    procedure Set_Normalized_Position             (Id : E; V : U);
7862    procedure Set_Normalized_Position_Max         (Id : E; V : U);
7863    procedure Set_OK_To_Rename                    (Id : E; V : B := True);
7864    procedure Set_OK_To_Reorder_Components        (Id : E; V : B := True);
7865    procedure Set_Optimize_Alignment_Space        (Id : E; V : B := True);
7866    procedure Set_Optimize_Alignment_Time         (Id : E; V : B := True);
7867    procedure Set_Original_Access_Type            (Id : E; V : E);
7868    procedure Set_Original_Array_Type             (Id : E; V : E);
7869    procedure Set_Original_Protected_Subprogram   (Id : E; V : N);
7870    procedure Set_Original_Record_Component       (Id : E; V : E);
7871    procedure Set_Overlays_Constant               (Id : E; V : B := True);
7872    procedure Set_Overridden_Operation            (Id : E; V : E);
7873    procedure Set_Package_Instantiation           (Id : E; V : N);
7874    procedure Set_Packed_Array_Impl_Type          (Id : E; V : E);
7875    procedure Set_Parent_Subtype                  (Id : E; V : E);
7876    procedure Set_Part_Of_Constituents            (Id : E; V : L);
7877    procedure Set_Part_Of_References              (Id : E; V : L);
7878    procedure Set_Partial_View_Has_Unknown_Discr  (Id : E; V : B := True);
7879    procedure Set_Pending_Access_Types            (Id : E; V : L);
7880    procedure Set_Postconditions_Proc             (Id : E; V : E);
7881    procedure Set_Prival                          (Id : E; V : E);
7882    procedure Set_Prival_Link                     (Id : E; V : E);
7883    procedure Set_Private_Dependents              (Id : E; V : L);
7884    procedure Set_Private_View                    (Id : E; V : N);
7885    procedure Set_Protected_Body_Subprogram       (Id : E; V : E);
7886    procedure Set_Protected_Formal                (Id : E; V : E);
7887    procedure Set_Protection_Object               (Id : E; V : E);
7888    procedure Set_Reachable                       (Id : E; V : B := True);
7889    procedure Set_Referenced                      (Id : E; V : B := True);
7890    procedure Set_Referenced_As_LHS               (Id : E; V : B := True);
7891    procedure Set_Referenced_As_Out_Parameter     (Id : E; V : B := True);
7892    procedure Set_Refinement_Constituents         (Id : E; V : L);
7893    procedure Set_Register_Exception_Call         (Id : E; V : N);
7894    procedure Set_Related_Array_Object            (Id : E; V : E);
7895    procedure Set_Related_Expression              (Id : E; V : N);
7896    procedure Set_Related_Instance                (Id : E; V : E);
7897    procedure Set_Related_Type                    (Id : E; V : E);
7898    procedure Set_Relative_Deadline_Variable      (Id : E; V : E);
7899    procedure Set_Renamed_Entity                  (Id : E; V : N);
7900    procedure Set_Renamed_In_Spec                 (Id : E; V : B := True);
7901    procedure Set_Renamed_Object                  (Id : E; V : N);
7902    procedure Set_Renaming_Map                    (Id : E; V : U);
7903    procedure Set_Requires_Overriding             (Id : E; V : B := True);
7904    procedure Set_Return_Applies_To               (Id : E; V : N);
7905    procedure Set_Return_Present                  (Id : E; V : B := True);
7906    procedure Set_Returns_By_Ref                  (Id : E; V : B := True);
7907    procedure Set_Returns_Limited_View            (Id : E; V : B := True);
7908    procedure Set_Reverse_Bit_Order               (Id : E; V : B := True);
7909    procedure Set_Reverse_Storage_Order           (Id : E; V : B := True);
7910    procedure Set_Rewritten_For_C                 (Id : E; V : B := True);
7911    procedure Set_RM_Size                         (Id : E; V : U);
7912    procedure Set_Scalar_Range                    (Id : E; V : N);
7913    procedure Set_Scale_Value                     (Id : E; V : U);
7914    procedure Set_Scope_Depth_Value               (Id : E; V : U);
7915    procedure Set_Sec_Stack_Needed_For_Return     (Id : E; V : B := True);
7916    procedure Set_Shadow_Entities                 (Id : E; V : S);
7917    procedure Set_Shared_Var_Procs_Instance       (Id : E; V : E);
7918    procedure Set_Size_Check_Code                 (Id : E; V : N);
7919    procedure Set_Size_Depends_On_Discriminant    (Id : E; V : B := True);
7920    procedure Set_Size_Known_At_Compile_Time      (Id : E; V : B := True);
7921    procedure Set_Small_Value                     (Id : E; V : R);
7922    procedure Set_SPARK_Aux_Pragma                (Id : E; V : N);
7923    procedure Set_SPARK_Aux_Pragma_Inherited      (Id : E; V : B := True);
7924    procedure Set_SPARK_Pragma                    (Id : E; V : N);
7925    procedure Set_SPARK_Pragma_Inherited          (Id : E; V : B := True);
7926    procedure Set_Spec_Entity                     (Id : E; V : E);
7927    procedure Set_SSO_Set_High_By_Default         (Id : E; V : B := True);
7928    procedure Set_SSO_Set_Low_By_Default          (Id : E; V : B := True);
7929    procedure Set_Static_Discrete_Predicate       (Id : E; V : S);
7930    procedure Set_Static_Elaboration_Desired      (Id : E; V : B);
7931    procedure Set_Static_Initialization           (Id : E; V : N);
7932    procedure Set_Static_Real_Or_String_Predicate (Id : E; V : N);
7933    procedure Set_Status_Flag_Or_Transient_Decl   (Id : E; V : E);
7934    procedure Set_Storage_Size_Variable           (Id : E; V : E);
7935    procedure Set_Stored_Constraint               (Id : E; V : L);
7936    procedure Set_Stores_Attribute_Old_Prefix     (Id : E; V : B := True);
7937    procedure Set_Strict_Alignment                (Id : E; V : B := True);
7938    procedure Set_String_Literal_Length           (Id : E; V : U);
7939    procedure Set_String_Literal_Low_Bound        (Id : E; V : N);
7940    procedure Set_Subprograms_For_Type            (Id : E; V : L);
7941    procedure Set_Subps_Index                     (Id : E; V : U);
7942    procedure Set_Suppress_Elaboration_Warnings   (Id : E; V : B := True);
7943    procedure Set_Suppress_Initialization         (Id : E; V : B := True);
7944    procedure Set_Suppress_Style_Checks           (Id : E; V : B := True);
7945    procedure Set_Suppress_Value_Tracking_On_Call (Id : E; V : B := True);
7946    procedure Set_Task_Body_Procedure             (Id : E; V : N);
7947    procedure Set_Thunk_Entity                    (Id : E; V : E);
7948    procedure Set_Treat_As_Volatile               (Id : E; V : B := True);
7949    procedure Set_Underlying_Full_View            (Id : E; V : E);
7950    procedure Set_Underlying_Record_View          (Id : E; V : E);
7951    procedure Set_Universal_Aliasing              (Id : E; V : B := True);
7952    procedure Set_Unset_Reference                 (Id : E; V : N);
7953    procedure Set_Used_As_Generic_Actual          (Id : E; V : B := True);
7954    procedure Set_Uses_Lock_Free                  (Id : E; V : B := True);
7955    procedure Set_Uses_Sec_Stack                  (Id : E; V : B := True);
7956    procedure Set_Warnings_Off                    (Id : E; V : B := True);
7957    procedure Set_Warnings_Off_Used               (Id : E; V : B := True);
7958    procedure Set_Warnings_Off_Used_Unmodified    (Id : E; V : B := True);
7959    procedure Set_Warnings_Off_Used_Unreferenced  (Id : E; V : B := True);
7960    procedure Set_Was_Hidden                      (Id : E; V : B := True);
7961    procedure Set_Wrapped_Entity                  (Id : E; V : E);
7962 
7963    ---------------------------------------------------
7964    -- Access to Subprograms in Subprograms_For_Type --
7965    ---------------------------------------------------
7966 
7967    function Default_Init_Cond_Procedure         (Id : E) return E;
7968    function Invariant_Procedure                 (Id : E) return E;
7969    function Partial_Invariant_Procedure         (Id : E) return E;
7970    function Predicate_Function                  (Id : E) return E;
7971    function Predicate_Function_M                (Id : E) return E;
7972 
7973    procedure Set_Default_Init_Cond_Procedure    (Id : E; V : E);
7974    procedure Set_Invariant_Procedure            (Id : E; V : E);
7975    procedure Set_Partial_Invariant_Procedure    (Id : E; V : E);
7976    procedure Set_Predicate_Function             (Id : E; V : E);
7977    procedure Set_Predicate_Function_M           (Id : E; V : E);
7978 
7979    -----------------------------------
7980    -- Field Initialization Routines --
7981    -----------------------------------
7982 
7983    --  These routines are overloadings of some of the above Set procedures
7984    --  where the argument is normally a Uint. The overloadings take an Int
7985    --  parameter instead, and appropriately convert it. There are also
7986    --  versions that implicitly initialize to the appropriate "not set"
7987    --  value. The not set (unknown) values are as follows:
7988 
7989    --    Alignment                 Uint_0
7990    --    Component_Size            Uint_0
7991    --    Component_Bit_Offset      No_Uint
7992    --    Digits_Value              Uint_0
7993    --    Esize                     Uint_0
7994    --    Normalized_First_Bit      No_Uint
7995    --    Normalized_Position       No_Uint
7996    --    Normalized_Position_Max   No_Uint
7997    --    RM_Size                   Uint_0
7998 
7999    --  It would be cleaner to use No_Uint in all these cases, but historically
8000    --  we chose to use Uint_0 at first, and the change over will take time ???
8001    --  This is particularly true for the RM_Size field, where a value of zero
8002    --  is legitimate and causes some special tests around the code.
8003 
8004    --  Contrary to the corresponding Set procedures above, these routines
8005    --  do NOT check the entity kind of their argument, instead they set the
8006    --  underlying Uint fields directly (this allows them to be used for
8007    --  entities whose Ekind has not been set yet).
8008 
8009    procedure Init_Alignment                (Id : E; V : Int);
8010    procedure Init_Component_Size           (Id : E; V : Int);
8011    procedure Init_Component_Bit_Offset     (Id : E; V : Int);
8012    procedure Init_Digits_Value             (Id : E; V : Int);
8013    procedure Init_Esize                    (Id : E; V : Int);
8014    procedure Init_Normalized_First_Bit     (Id : E; V : Int);
8015    procedure Init_Normalized_Position      (Id : E; V : Int);
8016    procedure Init_Normalized_Position_Max  (Id : E; V : Int);
8017    procedure Init_RM_Size                  (Id : E; V : Int);
8018 
8019    procedure Init_Alignment                (Id : E);
8020    procedure Init_Component_Size           (Id : E);
8021    procedure Init_Component_Bit_Offset     (Id : E);
8022    procedure Init_Digits_Value             (Id : E);
8023    procedure Init_Esize                    (Id : E);
8024    procedure Init_Normalized_First_Bit     (Id : E);
8025    procedure Init_Normalized_Position      (Id : E);
8026    procedure Init_Normalized_Position_Max  (Id : E);
8027    procedure Init_RM_Size                  (Id : E);
8028 
8029    procedure Init_Size_Align (Id : E);
8030    --  This procedure initializes both size fields and the alignment
8031    --  field to all be Unknown.
8032 
8033    procedure Init_Object_Size_Align (Id : E);
8034    --  Same as Init_Size_Align except RM_Size field (which is only for types)
8035    --  is unaffected.
8036 
8037    procedure Init_Size (Id : E; V : Int);
8038    --  Initialize both the Esize and RM_Size fields of E to V
8039 
8040    procedure Init_Component_Location (Id : E);
8041    --  Initializes all fields describing the location of a component
8042    --  (Normalized_Position, Component_Bit_Offset, Normalized_First_Bit,
8043    --  Normalized_Position_Max, Esize) to all be Unknown.
8044 
8045    ---------------
8046    -- Iterators --
8047    ---------------
8048 
8049    --  The call to Next_xxx (obj) is equivalent to obj := Next_xxx (obj)
8050    --  We define the set of Proc_Next_xxx routines simply for the purposes
8051    --  of inlining them without necessarily inlining the function.
8052 
8053    procedure Proc_Next_Component                 (N : in out Node_Id);
8054    procedure Proc_Next_Component_Or_Discriminant (N : in out Node_Id);
8055    procedure Proc_Next_Discriminant              (N : in out Node_Id);
8056    procedure Proc_Next_Formal                    (N : in out Node_Id);
8057    procedure Proc_Next_Formal_With_Extras        (N : in out Node_Id);
8058    procedure Proc_Next_Index                     (N : in out Node_Id);
8059    procedure Proc_Next_Inlined_Subprogram        (N : in out Node_Id);
8060    procedure Proc_Next_Literal                   (N : in out Node_Id);
8061    procedure Proc_Next_Stored_Discriminant       (N : in out Node_Id);
8062 
8063    pragma Inline (Proc_Next_Component);
8064    pragma Inline (Proc_Next_Component_Or_Discriminant);
8065    pragma Inline (Proc_Next_Discriminant);
8066    pragma Inline (Proc_Next_Formal);
8067    pragma Inline (Proc_Next_Formal_With_Extras);
8068    pragma Inline (Proc_Next_Index);
8069    pragma Inline (Proc_Next_Inlined_Subprogram);
8070    pragma Inline (Proc_Next_Literal);
8071    pragma Inline (Proc_Next_Stored_Discriminant);
8072 
8073    procedure Next_Component                 (N : in out Node_Id)
8074      renames Proc_Next_Component;
8075 
8076    procedure Next_Component_Or_Discriminant (N : in out Node_Id)
8077      renames Proc_Next_Component_Or_Discriminant;
8078 
8079    procedure Next_Discriminant              (N : in out Node_Id)
8080      renames Proc_Next_Discriminant;
8081 
8082    procedure Next_Formal                    (N : in out Node_Id)
8083      renames Proc_Next_Formal;
8084 
8085    procedure Next_Formal_With_Extras        (N : in out Node_Id)
8086      renames Proc_Next_Formal_With_Extras;
8087 
8088    procedure Next_Index                     (N : in out Node_Id)
8089      renames Proc_Next_Index;
8090 
8091    procedure Next_Inlined_Subprogram        (N : in out Node_Id)
8092      renames Proc_Next_Inlined_Subprogram;
8093 
8094    procedure Next_Literal                   (N : in out Node_Id)
8095      renames Proc_Next_Literal;
8096 
8097    procedure Next_Stored_Discriminant       (N : in out Node_Id)
8098      renames Proc_Next_Stored_Discriminant;
8099 
8100    ---------------------------
8101    -- Testing Warning Flags --
8102    ---------------------------
8103 
8104    --  These routines are to be used rather than testing flags Warnings_Off,
8105    --  Has_Pragma_Unmodified, Has_Pragma_Unreferenced. They deal with setting
8106    --  the flags Warnings_Off_Used[_Unmodified|Unreferenced] for later access.
8107 
8108    function Has_Warnings_Off (E : Entity_Id) return Boolean;
8109    --  If Warnings_Off is set on E, then returns True and also sets the flag
8110    --  Warnings_Off_Used on E. If Warnings_Off is not set on E, returns False
8111    --  and has no side effect.
8112 
8113    function Has_Unmodified (E : Entity_Id) return Boolean;
8114    --  If flag Has_Pragma_Unmodified is set on E, returns True with no side
8115    --  effects. Otherwise if Warnings_Off is set on E, returns True and also
8116    --  sets the flag Warnings_Off_Used_Unmodified on E. If neither of the flags
8117    --  Warnings_Off nor Has_Pragma_Unmodified is set, returns False with no
8118    --  side effects.
8119 
8120    function Has_Unreferenced (E : Entity_Id) return Boolean;
8121    --  If flag Has_Pragma_Unreferenced is set on E, returns True with no side
8122    --  effects. Otherwise if Warnings_Off is set on E, returns True and also
8123    --  sets the flag Warnings_Off_Used_Unreferenced on E. If neither of the
8124    --  flags Warnings_Off nor Has_Pragma_Unreferenced is set, returns False
8125    --  with no side effects.
8126 
8127    ----------------------------------------------
8128    -- Subprograms for Accessing Rep Item Chain --
8129    ----------------------------------------------
8130 
8131    --  The First_Rep_Item field of every entity points to a linked list (linked
8132    --  through Next_Rep_Item) of representation pragmas, attribute definition
8133    --  clauses, representation clauses, and aspect specifications that apply to
8134    --  the item. Note that in the case of types, it is assumed that any such
8135    --  rep items for a base type also apply to all subtypes. This is achieved
8136    --  by having the chain for subtypes link onto the chain for the base type,
8137    --  so that new entries for the subtype are added at the start of the chain.
8138    --
8139    --  Note: aspect specification nodes are linked only when evaluation of the
8140    --  expression is deferred to the freeze point. For further details see
8141    --  Sem_Ch13.Analyze_Aspect_Specifications.
8142 
8143    function Get_Attribute_Definition_Clause
8144      (E  : Entity_Id;
8145       Id : Attribute_Id) return Node_Id;
8146    --  Searches the Rep_Item chain for a given entity E, for an instance of an
8147    --  attribute definition clause with the given attribute Id. If found, the
8148    --  value returned is the N_Attribute_Definition_Clause node, otherwise
8149    --  Empty is returned.
8150 
8151    function Get_Pragma (E : Entity_Id; Id : Pragma_Id) return Node_Id;
8152    --  Searches the Rep_Item chain of entity E, for an instance of a pragma
8153    --  with the given pragma Id. If found, the value returned is the N_Pragma
8154    --  node, otherwise Empty is returned. The following contract pragmas that
8155    --  appear in N_Contract nodes are also handled by this routine:
8156    --    Abstract_State
8157    --    Async_Readers
8158    --    Async_Writers
8159    --    Attach_Handler
8160    --    Constant_After_Elaboration
8161    --    Contract_Cases
8162    --    Depends
8163    --    Effective_Reads
8164    --    Effective_Writes
8165    --    Global
8166    --    Initial_Condition
8167    --    Initializes
8168    --    Interrupt_Handler
8169    --    Part_Of
8170    --    Precondition
8171    --    Postcondition
8172    --    Refined_Depends
8173    --    Refined_Global
8174    --    Refined_Post
8175    --    Refined_State
8176    --    Test_Case
8177    --    Volatile_Function
8178 
8179    function Get_Record_Representation_Clause (E : Entity_Id) return Node_Id;
8180    --  Searches the Rep_Item chain for a given entity E, for a record
8181    --  representation clause, and if found, returns it. Returns Empty
8182    --  if no such clause is found.
8183 
8184    function Present_In_Rep_Item (E : Entity_Id; N : Node_Id) return Boolean;
8185    --  Return True if N is present in the Rep_Item chain for a given entity E
8186 
8187    procedure Record_Rep_Item (E : Entity_Id; N : Node_Id);
8188    --  N is the node for a representation pragma, representation clause, an
8189    --  attribute definition clause, or an aspect specification that applies to
8190    --  entity E. This procedure links the node N onto the Rep_Item chain for
8191    --  entity E. Note that it is an error to call this procedure with E being
8192    --  overloadable, and N being a pragma that applies to multiple overloadable
8193    --  entities (Convention, Interface, Inline, Inline_Always, Import, Export,
8194    --  External). This is not allowed even in the case where the entity is not
8195    --  overloaded, since we can't rely on it being present in the overloaded
8196    --  case, it is not useful to have it present in the non-overloaded case.
8197 
8198    -------------------------------
8199    -- Miscellaneous Subprograms --
8200    -------------------------------
8201 
8202    procedure Append_Entity (Id : Entity_Id; V : Entity_Id);
8203    --  Add an entity to the list of entities declared in the scope V
8204 
8205    function Get_Full_View (T : Entity_Id) return Entity_Id;
8206    --  If T is an incomplete type and the full declaration has been seen, or
8207    --  is the name of a class_wide type whose root is incomplete, return the
8208    --  corresponding full declaration, else return T itself.
8209 
8210    function Is_Entity_Name (N : Node_Id) return Boolean;
8211    --  Test if the node N is the name of an entity (i.e. is an identifier,
8212    --  expanded name, or an attribute reference that returns an entity).
8213 
8214    function Next_Index (Id : Node_Id) return Node_Id;
8215    --  Given an index from a previous call to First_Index or Next_Index,
8216    --  returns a node representing the occurrence of the next index subtype,
8217    --  or Empty if there are no more index subtypes.
8218 
8219    function Scope_Depth (Id : Entity_Id) return Uint;
8220    --  Returns the scope depth value of the Id, unless the Id is a record
8221    --  type, in which case it returns the scope depth of the record scope.
8222 
8223    function Subtype_Kind (K : Entity_Kind) return Entity_Kind;
8224    --  Given an entity_kind K this function returns the entity_kind
8225    --  corresponding to subtype kind of the type represented by K. For
8226    --  example if K is E_Signed_Integer_Type then E_Signed_Integer_Subtype
8227    --  is returned. If K is already a subtype kind it itself is returned. An
8228    --  internal error is generated if no such correspondence exists for K.
8229 
8230    ----------------------------------
8231    -- Debugging Output Subprograms --
8232    ----------------------------------
8233 
8234    procedure Write_Entity_Flags (Id : Entity_Id; Prefix : String);
8235    --  Writes a series of entries giving a line for each flag that is
8236    --  set to True. Each line is prefixed by the given string.
8237 
8238    procedure Write_Entity_Info (Id : Entity_Id; Prefix : String);
8239    --  A debugging procedure to write out information about an entity
8240 
8241    procedure Write_Field6_Name  (Id : Entity_Id);
8242    procedure Write_Field7_Name  (Id : Entity_Id);
8243    procedure Write_Field8_Name  (Id : Entity_Id);
8244    procedure Write_Field9_Name  (Id : Entity_Id);
8245    procedure Write_Field10_Name (Id : Entity_Id);
8246    procedure Write_Field11_Name (Id : Entity_Id);
8247    procedure Write_Field12_Name (Id : Entity_Id);
8248    procedure Write_Field13_Name (Id : Entity_Id);
8249    procedure Write_Field14_Name (Id : Entity_Id);
8250    procedure Write_Field15_Name (Id : Entity_Id);
8251    procedure Write_Field16_Name (Id : Entity_Id);
8252    procedure Write_Field17_Name (Id : Entity_Id);
8253    procedure Write_Field18_Name (Id : Entity_Id);
8254    procedure Write_Field19_Name (Id : Entity_Id);
8255    procedure Write_Field20_Name (Id : Entity_Id);
8256    procedure Write_Field21_Name (Id : Entity_Id);
8257    procedure Write_Field22_Name (Id : Entity_Id);
8258    procedure Write_Field23_Name (Id : Entity_Id);
8259    procedure Write_Field24_Name (Id : Entity_Id);
8260    procedure Write_Field25_Name (Id : Entity_Id);
8261    procedure Write_Field26_Name (Id : Entity_Id);
8262    procedure Write_Field27_Name (Id : Entity_Id);
8263    procedure Write_Field28_Name (Id : Entity_Id);
8264    procedure Write_Field29_Name (Id : Entity_Id);
8265    procedure Write_Field30_Name (Id : Entity_Id);
8266    procedure Write_Field31_Name (Id : Entity_Id);
8267    procedure Write_Field32_Name (Id : Entity_Id);
8268    procedure Write_Field33_Name (Id : Entity_Id);
8269    procedure Write_Field34_Name (Id : Entity_Id);
8270    procedure Write_Field35_Name (Id : Entity_Id);
8271    procedure Write_Field36_Name (Id : Entity_Id);
8272    procedure Write_Field37_Name (Id : Entity_Id);
8273    procedure Write_Field38_Name (Id : Entity_Id);
8274    procedure Write_Field39_Name (Id : Entity_Id);
8275    procedure Write_Field40_Name (Id : Entity_Id);
8276    procedure Write_Field41_Name (Id : Entity_Id);
8277    --  These routines are used in Treepr to output a nice symbolic name for
8278    --  the given field, depending on the Ekind. No blanks or end of lines are
8279    --  output, just the characters of the field name.
8280 
8281    --------------------
8282    -- Inline Pragmas --
8283    --------------------
8284 
8285    --  Note that these inline pragmas are referenced by the XEINFO utility
8286    --  program in preparing the corresponding C header, and only those
8287    --  subprograms meeting the requirements documented in the section on
8288    --  XEINFO may be referenced in this section.
8289 
8290    pragma Inline (Abstract_States);
8291    pragma Inline (Accept_Address);
8292    pragma Inline (Access_Disp_Table);
8293    pragma Inline (Activation_Record_Component);
8294    pragma Inline (Actual_Subtype);
8295    pragma Inline (Address_Taken);
8296    pragma Inline (Alias);
8297    pragma Inline (Alignment);
8298    pragma Inline (Anonymous_Master);
8299    pragma Inline (Anonymous_Object);
8300    pragma Inline (Associated_Entity);
8301    pragma Inline (Associated_Formal_Package);
8302    pragma Inline (Associated_Node_For_Itype);
8303    pragma Inline (Associated_Storage_Pool);
8304    pragma Inline (Barrier_Function);
8305    pragma Inline (BIP_Initialization_Call);
8306    pragma Inline (Block_Node);
8307    pragma Inline (Body_Entity);
8308    pragma Inline (Body_Needed_For_SAL);
8309    pragma Inline (Body_References);
8310    pragma Inline (C_Pass_By_Copy);
8311    pragma Inline (Can_Never_Be_Null);
8312    pragma Inline (Can_Use_Internal_Rep);
8313    pragma Inline (Checks_May_Be_Suppressed);
8314    pragma Inline (Class_Wide_Preconds);
8315    pragma Inline (Class_Wide_Postconds);
8316    pragma Inline (Class_Wide_Type);
8317    pragma Inline (Cloned_Subtype);
8318    pragma Inline (Component_Bit_Offset);
8319    pragma Inline (Component_Clause);
8320    pragma Inline (Component_Size);
8321    pragma Inline (Component_Type);
8322    pragma Inline (Contains_Ignored_Ghost_Code);
8323    pragma Inline (Contract);
8324    pragma Inline (Contract_Wrapper);
8325    pragma Inline (Corresponding_Concurrent_Type);
8326    pragma Inline (Corresponding_Discriminant);
8327    pragma Inline (Corresponding_Equality);
8328    pragma Inline (Corresponding_Protected_Entry);
8329    pragma Inline (Corresponding_Record_Type);
8330    pragma Inline (Corresponding_Remote_Type);
8331    pragma Inline (CR_Discriminant);
8332    pragma Inline (Current_Use_Clause);
8333    pragma Inline (Current_Value);
8334    pragma Inline (Debug_Info_Off);
8335    pragma Inline (Debug_Renaming_Link);
8336    pragma Inline (Default_Aspect_Component_Value);
8337    pragma Inline (Default_Aspect_Value);
8338    pragma Inline (Default_Expr_Function);
8339    pragma Inline (Default_Expressions_Processed);
8340    pragma Inline (Default_Value);
8341    pragma Inline (Delay_Cleanups);
8342    pragma Inline (Delay_Subprogram_Descriptors);
8343    pragma Inline (Delta_Value);
8344    pragma Inline (Dependent_Instances);
8345    pragma Inline (Depends_On_Private);
8346    pragma Inline (Derived_Type_Link);
8347    pragma Inline (Digits_Value);
8348    pragma Inline (Direct_Primitive_Operations);
8349    pragma Inline (Directly_Designated_Type);
8350    pragma Inline (Disable_Controlled);
8351    pragma Inline (Discard_Names);
8352    pragma Inline (Discriminal);
8353    pragma Inline (Discriminal_Link);
8354    pragma Inline (Discriminant_Checking_Func);
8355    pragma Inline (Discriminant_Constraint);
8356    pragma Inline (Discriminant_Default_Value);
8357    pragma Inline (Discriminant_Number);
8358    pragma Inline (Dispatch_Table_Wrappers);
8359    pragma Inline (DT_Entry_Count);
8360    pragma Inline (DT_Offset_To_Top_Func);
8361    pragma Inline (DT_Position);
8362    pragma Inline (DTC_Entity);
8363    pragma Inline (Elaborate_Body_Desirable);
8364    pragma Inline (Elaboration_Entity);
8365    pragma Inline (Elaboration_Entity_Required);
8366    pragma Inline (Encapsulating_State);
8367    pragma Inline (Enclosing_Scope);
8368    pragma Inline (Entry_Accepted);
8369    pragma Inline (Entry_Bodies_Array);
8370    pragma Inline (Entry_Cancel_Parameter);
8371    pragma Inline (Entry_Component);
8372    pragma Inline (Entry_Formal);
8373    pragma Inline (Entry_Index_Constant);
8374    pragma Inline (Entry_Index_Type);
8375    pragma Inline (Entry_Parameters_Type);
8376    pragma Inline (Enum_Pos_To_Rep);
8377    pragma Inline (Enumeration_Pos);
8378    pragma Inline (Enumeration_Rep);
8379    pragma Inline (Enumeration_Rep_Expr);
8380    pragma Inline (Equivalent_Type);
8381    pragma Inline (Esize);
8382    pragma Inline (Extra_Accessibility);
8383    pragma Inline (Extra_Accessibility_Of_Result);
8384    pragma Inline (Extra_Constrained);
8385    pragma Inline (Extra_Formal);
8386    pragma Inline (Extra_Formals);
8387    pragma Inline (Finalization_Master);
8388    pragma Inline (Finalizer);
8389    pragma Inline (First_Entity);
8390    pragma Inline (First_Exit_Statement);
8391    pragma Inline (First_Index);
8392    pragma Inline (First_Literal);
8393    pragma Inline (First_Private_Entity);
8394    pragma Inline (First_Rep_Item);
8395    pragma Inline (Freeze_Node);
8396    pragma Inline (From_Limited_With);
8397    pragma Inline (Full_View);
8398    pragma Inline (Generic_Homonym);
8399    pragma Inline (Generic_Renamings);
8400    pragma Inline (Handler_Records);
8401    pragma Inline (Has_Aliased_Components);
8402    pragma Inline (Has_Alignment_Clause);
8403    pragma Inline (Has_All_Calls_Remote);
8404    pragma Inline (Has_Atomic_Components);
8405    pragma Inline (Has_Biased_Representation);
8406    pragma Inline (Has_Completion);
8407    pragma Inline (Has_Completion_In_Body);
8408    pragma Inline (Has_Complex_Representation);
8409    pragma Inline (Has_Component_Size_Clause);
8410    pragma Inline (Has_Constrained_Partial_View);
8411    pragma Inline (Has_Contiguous_Rep);
8412    pragma Inline (Has_Controlled_Component);
8413    pragma Inline (Has_Controlling_Result);
8414    pragma Inline (Has_Convention_Pragma);
8415    pragma Inline (Has_Default_Aspect);
8416    pragma Inline (Has_Default_Init_Cond);
8417    pragma Inline (Has_Delayed_Aspects);
8418    pragma Inline (Has_Delayed_Freeze);
8419    pragma Inline (Has_Delayed_Rep_Aspects);
8420    pragma Inline (Has_Discriminants);
8421    pragma Inline (Has_Dispatch_Table);
8422    pragma Inline (Has_Dynamic_Predicate_Aspect);
8423    pragma Inline (Has_Enumeration_Rep_Clause);
8424    pragma Inline (Has_Exit);
8425    pragma Inline (Has_Expanded_Contract);
8426    pragma Inline (Has_Forward_Instantiation);
8427    pragma Inline (Has_Fully_Qualified_Name);
8428    pragma Inline (Has_Gigi_Rep_Item);
8429    pragma Inline (Has_Homonym);
8430    pragma Inline (Has_Implicit_Dereference);
8431    pragma Inline (Has_Independent_Components);
8432    pragma Inline (Has_Inheritable_Invariants);
8433    pragma Inline (Has_Inherited_Default_Init_Cond);
8434    pragma Inline (Has_Inherited_Invariants);
8435    pragma Inline (Has_Initial_Value);
8436    pragma Inline (Has_Loop_Entry_Attributes);
8437    pragma Inline (Has_Machine_Radix_Clause);
8438    pragma Inline (Has_Master_Entity);
8439    pragma Inline (Has_Missing_Return);
8440    pragma Inline (Has_Nested_Block_With_Handler);
8441    pragma Inline (Has_Nested_Subprogram);
8442    pragma Inline (Has_Non_Standard_Rep);
8443    pragma Inline (Has_Object_Size_Clause);
8444    pragma Inline (Has_Out_Or_In_Out_Parameter);
8445    pragma Inline (Has_Own_Invariants);
8446    pragma Inline (Has_Per_Object_Constraint);
8447    pragma Inline (Has_Pragma_Controlled);
8448    pragma Inline (Has_Pragma_Elaborate_Body);
8449    pragma Inline (Has_Pragma_Inline);
8450    pragma Inline (Has_Pragma_Inline_Always);
8451    pragma Inline (Has_Pragma_No_Inline);
8452    pragma Inline (Has_Pragma_Ordered);
8453    pragma Inline (Has_Pragma_Pack);
8454    pragma Inline (Has_Pragma_Preelab_Init);
8455    pragma Inline (Has_Pragma_Pure);
8456    pragma Inline (Has_Pragma_Pure_Function);
8457    pragma Inline (Has_Pragma_Thread_Local_Storage);
8458    pragma Inline (Has_Pragma_Unmodified);
8459    pragma Inline (Has_Pragma_Unreferenced);
8460    pragma Inline (Has_Pragma_Unreferenced_Objects);
8461    pragma Inline (Has_Pragma_Unused);
8462    pragma Inline (Has_Predicates);
8463    pragma Inline (Has_Primitive_Operations);
8464    pragma Inline (Has_Private_Ancestor);
8465    pragma Inline (Has_Private_Declaration);
8466    pragma Inline (Has_Protected);
8467    pragma Inline (Has_Qualified_Name);
8468    pragma Inline (Has_RACW);
8469    pragma Inline (Has_Record_Rep_Clause);
8470    pragma Inline (Has_Recursive_Call);
8471    pragma Inline (Has_Shift_Operator);
8472    pragma Inline (Has_Size_Clause);
8473    pragma Inline (Has_Small_Clause);
8474    pragma Inline (Has_Specified_Layout);
8475    pragma Inline (Has_Specified_Stream_Input);
8476    pragma Inline (Has_Specified_Stream_Output);
8477    pragma Inline (Has_Specified_Stream_Read);
8478    pragma Inline (Has_Specified_Stream_Write);
8479    pragma Inline (Has_Static_Discriminants);
8480    pragma Inline (Has_Static_Predicate);
8481    pragma Inline (Has_Static_Predicate_Aspect);
8482    pragma Inline (Has_Storage_Size_Clause);
8483    pragma Inline (Has_Stream_Size_Clause);
8484    pragma Inline (Has_Task);
8485    pragma Inline (Has_Timing_Event);
8486    pragma Inline (Has_Thunks);
8487    pragma Inline (Has_Unchecked_Union);
8488    pragma Inline (Has_Unknown_Discriminants);
8489    pragma Inline (Has_Visible_Refinement);
8490    pragma Inline (Has_Volatile_Components);
8491    pragma Inline (Has_Xref_Entry);
8492    pragma Inline (Hiding_Loop_Variable);
8493    pragma Inline (Homonym);
8494    pragma Inline (Import_Pragma);
8495    pragma Inline (Incomplete_Actuals);
8496    pragma Inline (In_Package_Body);
8497    pragma Inline (In_Private_Part);
8498    pragma Inline (In_Use);
8499    pragma Inline (Inner_Instances);
8500    pragma Inline (Interface_Alias);
8501    pragma Inline (Interface_Name);
8502    pragma Inline (Interfaces);
8503    pragma Inline (Is_Abstract_Subprogram);
8504    pragma Inline (Is_Abstract_Type);
8505    pragma Inline (Is_Access_Constant);
8506    pragma Inline (Is_Actual_Subtype);
8507    pragma Inline (Is_Access_Protected_Subprogram_Type);
8508    pragma Inline (Is_Access_Subprogram_Type);
8509    pragma Inline (Is_Access_Type);
8510    pragma Inline (Is_Ada_2005_Only);
8511    pragma Inline (Is_Ada_2012_Only);
8512    pragma Inline (Is_Aggregate_Type);
8513    pragma Inline (Is_Aliased);
8514    pragma Inline (Is_Array_Type);
8515    pragma Inline (Is_Assignable);
8516    pragma Inline (Is_Asynchronous);
8517    pragma Inline (Is_Atomic);
8518    pragma Inline (Is_Atomic_Or_VFA);
8519    pragma Inline (Is_Bit_Packed_Array);
8520    pragma Inline (Is_Called);
8521    pragma Inline (Is_Character_Type);
8522    pragma Inline (Is_Checked_Ghost_Entity);
8523    pragma Inline (Is_Child_Unit);
8524    pragma Inline (Is_Class_Wide_Equivalent_Type);
8525    pragma Inline (Is_Class_Wide_Type);
8526    pragma Inline (Is_Compilation_Unit);
8527    pragma Inline (Is_Completely_Hidden);
8528    pragma Inline (Is_Composite_Type);
8529    pragma Inline (Is_Concurrent_Body);
8530    pragma Inline (Is_Concurrent_Record_Type);
8531    pragma Inline (Is_Concurrent_Type);
8532    pragma Inline (Is_Constr_Subt_For_U_Nominal);
8533    pragma Inline (Is_Constr_Subt_For_UN_Aliased);
8534    pragma Inline (Is_Constrained);
8535    pragma Inline (Is_Constructor);
8536    pragma Inline (Is_Controlled);
8537    pragma Inline (Is_Controlling_Formal);
8538    pragma Inline (Is_CPP_Class);
8539    pragma Inline (Is_Decimal_Fixed_Point_Type);
8540    pragma Inline (Is_Default_Init_Cond_Procedure);
8541    pragma Inline (Is_Descendant_Of_Address);
8542    pragma Inline (Is_Digits_Type);
8543    pragma Inline (Is_Discrete_Or_Fixed_Point_Type);
8544    pragma Inline (Is_Discrete_Type);
8545    pragma Inline (Is_Discrim_SO_Function);
8546    pragma Inline (Is_Discriminant_Check_Function);
8547    pragma Inline (Is_Dispatch_Table_Entity);
8548    pragma Inline (Is_Dispatching_Operation);
8549    pragma Inline (Is_Elementary_Type);
8550    pragma Inline (Is_Eliminated);
8551    pragma Inline (Is_Entry);
8552    pragma Inline (Is_Entry_Formal);
8553    pragma Inline (Is_Enumeration_Type);
8554    pragma Inline (Is_Exception_Handler);
8555    pragma Inline (Is_Exported);
8556    pragma Inline (Is_First_Subtype);
8557    pragma Inline (Is_Fixed_Point_Type);
8558    pragma Inline (Is_Floating_Point_Type);
8559    pragma Inline (Is_For_Access_Subtype);
8560    pragma Inline (Is_Formal);
8561    pragma Inline (Is_Formal_Object);
8562    pragma Inline (Is_Formal_Subprogram);
8563    pragma Inline (Is_Frozen);
8564    pragma Inline (Is_Generic_Actual_Subprogram);
8565    pragma Inline (Is_Generic_Actual_Type);
8566    pragma Inline (Is_Generic_Instance);
8567    pragma Inline (Is_Generic_Subprogram);
8568    pragma Inline (Is_Generic_Type);
8569    pragma Inline (Is_Generic_Unit);
8570    pragma Inline (Is_Ghost_Entity);
8571    pragma Inline (Is_Hidden);
8572    pragma Inline (Is_Hidden_Non_Overridden_Subpgm);
8573    pragma Inline (Is_Hidden_Open_Scope);
8574    pragma Inline (Is_Ignored_Ghost_Entity);
8575    pragma Inline (Is_Immediately_Visible);
8576    pragma Inline (Is_Implementation_Defined);
8577    pragma Inline (Is_Imported);
8578    pragma Inline (Is_Incomplete_Or_Private_Type);
8579    pragma Inline (Is_Incomplete_Type);
8580    pragma Inline (Is_Independent);
8581    pragma Inline (Is_Inlined);
8582    pragma Inline (Is_Inlined_Always);
8583    pragma Inline (Is_Instantiated);
8584    pragma Inline (Is_Integer_Type);
8585    pragma Inline (Is_Interface);
8586    pragma Inline (Is_Internal);
8587    pragma Inline (Is_Interrupt_Handler);
8588    pragma Inline (Is_Intrinsic_Subprogram);
8589    pragma Inline (Is_Invariant_Procedure);
8590    pragma Inline (Is_Itype);
8591    pragma Inline (Is_Known_Non_Null);
8592    pragma Inline (Is_Known_Null);
8593    pragma Inline (Is_Known_Valid);
8594    pragma Inline (Is_Limited_Composite);
8595    pragma Inline (Is_Limited_Interface);
8596    pragma Inline (Is_Limited_Record);
8597    pragma Inline (Is_Local_Anonymous_Access);
8598    pragma Inline (Is_Machine_Code_Subprogram);
8599    pragma Inline (Is_Modular_Integer_Type);
8600    pragma Inline (Is_Named_Number);
8601    pragma Inline (Is_Non_Static_Subtype);
8602    pragma Inline (Is_Null_Init_Proc);
8603    pragma Inline (Is_Numeric_Type);
8604    pragma Inline (Is_Object);
8605    pragma Inline (Is_Obsolescent);
8606    pragma Inline (Is_Only_Out_Parameter);
8607    pragma Inline (Is_Ordinary_Fixed_Point_Type);
8608    pragma Inline (Is_Overloadable);
8609    pragma Inline (Is_Package_Body_Entity);
8610    pragma Inline (Is_Packed);
8611    pragma Inline (Is_Packed_Array_Impl_Type);
8612    pragma Inline (Is_Param_Block_Component_Type);
8613    pragma Inline (Is_Partial_Invariant_Procedure);
8614    pragma Inline (Is_Potentially_Use_Visible);
8615    pragma Inline (Is_Predicate_Function);
8616    pragma Inline (Is_Predicate_Function_M);
8617    pragma Inline (Is_Preelaborated);
8618    pragma Inline (Is_Primitive);
8619    pragma Inline (Is_Primitive_Wrapper);
8620    pragma Inline (Is_Private_Composite);
8621    pragma Inline (Is_Private_Descendant);
8622    pragma Inline (Is_Private_Primitive);
8623    pragma Inline (Is_Private_Type);
8624    pragma Inline (Is_Processed_Transient);
8625    pragma Inline (Is_Protected_Type);
8626    pragma Inline (Is_Public);
8627    pragma Inline (Is_Pure);
8628    pragma Inline (Is_Pure_Unit_Access_Type);
8629    pragma Inline (Is_RACW_Stub_Type);
8630    pragma Inline (Is_Raised);
8631    pragma Inline (Is_Real_Type);
8632    pragma Inline (Is_Record_Type);
8633    pragma Inline (Is_Remote_Call_Interface);
8634    pragma Inline (Is_Remote_Types);
8635    pragma Inline (Is_Renaming_Of_Object);
8636    pragma Inline (Is_Return_Object);
8637    pragma Inline (Is_Safe_To_Reevaluate);
8638    pragma Inline (Is_Scalar_Type);
8639    pragma Inline (Is_Shared_Passive);
8640    pragma Inline (Is_Signed_Integer_Type);
8641    pragma Inline (Is_Static_Type);
8642    pragma Inline (Is_Statically_Allocated);
8643    pragma Inline (Is_Subprogram);
8644    pragma Inline (Is_Tag);
8645    pragma Inline (Is_Tagged_Type);
8646    pragma Inline (Is_Task_Type);
8647    pragma Inline (Is_Thunk);
8648    pragma Inline (Is_Trivial_Subprogram);
8649    pragma Inline (Is_True_Constant);
8650    pragma Inline (Is_Type);
8651    pragma Inline (Is_Unchecked_Union);
8652    pragma Inline (Is_Underlying_Record_View);
8653    pragma Inline (Is_Unimplemented);
8654    pragma Inline (Is_Unsigned_Type);
8655    pragma Inline (Is_Uplevel_Referenced_Entity);
8656    pragma Inline (Is_Valued_Procedure);
8657    pragma Inline (Is_Visible_Formal);
8658    pragma Inline (Is_Visible_Lib_Unit);
8659    pragma Inline (Is_Volatile_Full_Access);
8660    pragma Inline (Itype_Printed);
8661    pragma Inline (Kill_Elaboration_Checks);
8662    pragma Inline (Kill_Range_Checks);
8663    pragma Inline (Known_To_Have_Preelab_Init);
8664    pragma Inline (Last_Aggregate_Assignment);
8665    pragma Inline (Last_Assignment);
8666    pragma Inline (Last_Entity);
8667    pragma Inline (Limited_View);
8668    pragma Inline (Linker_Section_Pragma);
8669    pragma Inline (Lit_Indexes);
8670    pragma Inline (Lit_Strings);
8671    pragma Inline (Low_Bound_Tested);
8672    pragma Inline (Machine_Radix_10);
8673    pragma Inline (Master_Id);
8674    pragma Inline (Materialize_Entity);
8675    pragma Inline (May_Inherit_Delayed_Rep_Aspects);
8676    pragma Inline (Mechanism);
8677    pragma Inline (Modulus);
8678    pragma Inline (Must_Be_On_Byte_Boundary);
8679    pragma Inline (Must_Have_Preelab_Init);
8680    pragma Inline (Needs_Debug_Info);
8681    pragma Inline (Needs_No_Actuals);
8682    pragma Inline (Never_Set_In_Source);
8683    pragma Inline (Next_Index);
8684    pragma Inline (Next_Inlined_Subprogram);
8685    pragma Inline (Next_Literal);
8686    pragma Inline (No_Dynamic_Predicate_On_Actual);
8687    pragma Inline (No_Pool_Assigned);
8688    pragma Inline (No_Predicate_On_Actual);
8689    pragma Inline (No_Return);
8690    pragma Inline (No_Strict_Aliasing);
8691    pragma Inline (No_Tagged_Streams_Pragma);
8692    pragma Inline (Non_Binary_Modulus);
8693    pragma Inline (Non_Limited_View);
8694    pragma Inline (Nonzero_Is_True);
8695    pragma Inline (Normalized_First_Bit);
8696    pragma Inline (Normalized_Position);
8697    pragma Inline (Normalized_Position_Max);
8698    pragma Inline (OK_To_Rename);
8699    pragma Inline (OK_To_Reorder_Components);
8700    pragma Inline (Optimize_Alignment_Space);
8701    pragma Inline (Optimize_Alignment_Time);
8702    pragma Inline (Original_Access_Type);
8703    pragma Inline (Original_Array_Type);
8704    pragma Inline (Original_Protected_Subprogram);
8705    pragma Inline (Original_Record_Component);
8706    pragma Inline (Overlays_Constant);
8707    pragma Inline (Overridden_Operation);
8708    pragma Inline (Package_Instantiation);
8709    pragma Inline (Packed_Array_Impl_Type);
8710    pragma Inline (Parameter_Mode);
8711    pragma Inline (Parent_Subtype);
8712    pragma Inline (Part_Of_Constituents);
8713    pragma Inline (Part_Of_References);
8714    pragma Inline (Partial_View_Has_Unknown_Discr);
8715    pragma Inline (Pending_Access_Types);
8716    pragma Inline (Postconditions_Proc);
8717    pragma Inline (Predicates_Ignored);
8718    pragma Inline (Prival);
8719    pragma Inline (Prival_Link);
8720    pragma Inline (Private_Dependents);
8721    pragma Inline (Private_View);
8722    pragma Inline (Protected_Body_Subprogram);
8723    pragma Inline (Protected_Formal);
8724    pragma Inline (Protection_Object);
8725    pragma Inline (Reachable);
8726    pragma Inline (Referenced);
8727    pragma Inline (Referenced_As_LHS);
8728    pragma Inline (Referenced_As_Out_Parameter);
8729    pragma Inline (Refinement_Constituents);
8730    pragma Inline (Register_Exception_Call);
8731    pragma Inline (Related_Array_Object);
8732    pragma Inline (Related_Expression);
8733    pragma Inline (Related_Instance);
8734    pragma Inline (Related_Type);
8735    pragma Inline (Relative_Deadline_Variable);
8736    pragma Inline (Renamed_Entity);
8737    pragma Inline (Renamed_In_Spec);
8738    pragma Inline (Renamed_Object);
8739    pragma Inline (Renaming_Map);
8740    pragma Inline (Requires_Overriding);
8741    pragma Inline (Return_Applies_To);
8742    pragma Inline (Return_Present);
8743    pragma Inline (Returns_By_Ref);
8744    pragma Inline (Returns_Limited_View);
8745    pragma Inline (Reverse_Bit_Order);
8746    pragma Inline (Reverse_Storage_Order);
8747    pragma Inline (Rewritten_For_C);
8748    pragma Inline (RM_Size);
8749    pragma Inline (Scalar_Range);
8750    pragma Inline (Scale_Value);
8751    pragma Inline (Scope_Depth_Value);
8752    pragma Inline (Sec_Stack_Needed_For_Return);
8753    pragma Inline (Shadow_Entities);
8754    pragma Inline (Shared_Var_Procs_Instance);
8755    pragma Inline (Size_Check_Code);
8756    pragma Inline (Size_Depends_On_Discriminant);
8757    pragma Inline (Size_Known_At_Compile_Time);
8758    pragma Inline (Small_Value);
8759    pragma Inline (SPARK_Aux_Pragma);
8760    pragma Inline (SPARK_Aux_Pragma_Inherited);
8761    pragma Inline (SPARK_Pragma);
8762    pragma Inline (SPARK_Pragma_Inherited);
8763    pragma Inline (Spec_Entity);
8764    pragma Inline (SSO_Set_High_By_Default);
8765    pragma Inline (SSO_Set_Low_By_Default);
8766    pragma Inline (Static_Discrete_Predicate);
8767    pragma Inline (Static_Elaboration_Desired);
8768    pragma Inline (Static_Initialization);
8769    pragma Inline (Static_Real_Or_String_Predicate);
8770    pragma Inline (Status_Flag_Or_Transient_Decl);
8771    pragma Inline (Storage_Size_Variable);
8772    pragma Inline (Stored_Constraint);
8773    pragma Inline (Stores_Attribute_Old_Prefix);
8774    pragma Inline (Strict_Alignment);
8775    pragma Inline (String_Literal_Length);
8776    pragma Inline (String_Literal_Low_Bound);
8777    pragma Inline (Subprograms_For_Type);
8778    pragma Inline (Subps_Index);
8779    pragma Inline (Suppress_Elaboration_Warnings);
8780    pragma Inline (Suppress_Initialization);
8781    pragma Inline (Suppress_Style_Checks);
8782    pragma Inline (Suppress_Value_Tracking_On_Call);
8783    pragma Inline (Task_Body_Procedure);
8784    pragma Inline (Thunk_Entity);
8785    pragma Inline (Treat_As_Volatile);
8786    pragma Inline (Underlying_Full_View);
8787    pragma Inline (Underlying_Record_View);
8788    pragma Inline (Universal_Aliasing);
8789    pragma Inline (Unset_Reference);
8790    pragma Inline (Used_As_Generic_Actual);
8791    pragma Inline (Uses_Lock_Free);
8792    pragma Inline (Uses_Sec_Stack);
8793    pragma Inline (Warnings_Off);
8794    pragma Inline (Warnings_Off_Used);
8795    pragma Inline (Warnings_Off_Used_Unmodified);
8796    pragma Inline (Warnings_Off_Used_Unreferenced);
8797    pragma Inline (Was_Hidden);
8798    pragma Inline (Wrapped_Entity);
8799 
8800    pragma Inline (Init_Alignment);
8801    pragma Inline (Init_Component_Bit_Offset);
8802    pragma Inline (Init_Component_Size);
8803    pragma Inline (Init_Digits_Value);
8804    pragma Inline (Init_Esize);
8805    pragma Inline (Init_RM_Size);
8806 
8807    pragma Inline (Set_Abstract_States);
8808    pragma Inline (Set_Accept_Address);
8809    pragma Inline (Set_Access_Disp_Table);
8810    pragma Inline (Set_Activation_Record_Component);
8811    pragma Inline (Set_Actual_Subtype);
8812    pragma Inline (Set_Address_Taken);
8813    pragma Inline (Set_Alias);
8814    pragma Inline (Set_Alignment);
8815    pragma Inline (Set_Anonymous_Master);
8816    pragma Inline (Set_Anonymous_Object);
8817    pragma Inline (Set_Associated_Entity);
8818    pragma Inline (Set_Associated_Formal_Package);
8819    pragma Inline (Set_Associated_Node_For_Itype);
8820    pragma Inline (Set_Associated_Storage_Pool);
8821    pragma Inline (Set_Barrier_Function);
8822    pragma Inline (Set_BIP_Initialization_Call);
8823    pragma Inline (Set_Block_Node);
8824    pragma Inline (Set_Body_Entity);
8825    pragma Inline (Set_Body_Needed_For_SAL);
8826    pragma Inline (Set_Body_References);
8827    pragma Inline (Set_C_Pass_By_Copy);
8828    pragma Inline (Set_Can_Never_Be_Null);
8829    pragma Inline (Set_Can_Use_Internal_Rep);
8830    pragma Inline (Set_Checks_May_Be_Suppressed);
8831    pragma Inline (Set_Class_Wide_Postconds);
8832    pragma Inline (Set_Class_Wide_Preconds);
8833    pragma Inline (Set_Class_Wide_Type);
8834    pragma Inline (Set_Cloned_Subtype);
8835    pragma Inline (Set_Component_Bit_Offset);
8836    pragma Inline (Set_Component_Clause);
8837    pragma Inline (Set_Component_Size);
8838    pragma Inline (Set_Component_Type);
8839    pragma Inline (Set_Contains_Ignored_Ghost_Code);
8840    pragma Inline (Set_Contract);
8841    pragma Inline (Set_Contract_Wrapper);
8842    pragma Inline (Set_Corresponding_Concurrent_Type);
8843    pragma Inline (Set_Corresponding_Discriminant);
8844    pragma Inline (Set_Corresponding_Equality);
8845    pragma Inline (Set_Corresponding_Protected_Entry);
8846    pragma Inline (Set_Corresponding_Record_Type);
8847    pragma Inline (Set_Corresponding_Remote_Type);
8848    pragma Inline (Set_CR_Discriminant);
8849    pragma Inline (Set_Current_Use_Clause);
8850    pragma Inline (Set_Current_Value);
8851    pragma Inline (Set_Debug_Info_Off);
8852    pragma Inline (Set_Debug_Renaming_Link);
8853    pragma Inline (Set_Default_Aspect_Component_Value);
8854    pragma Inline (Set_Default_Aspect_Value);
8855    pragma Inline (Set_Default_Expr_Function);
8856    pragma Inline (Set_Default_Expressions_Processed);
8857    pragma Inline (Set_Default_Value);
8858    pragma Inline (Set_Delay_Cleanups);
8859    pragma Inline (Set_Delay_Subprogram_Descriptors);
8860    pragma Inline (Set_Delta_Value);
8861    pragma Inline (Set_Dependent_Instances);
8862    pragma Inline (Set_Depends_On_Private);
8863    pragma Inline (Set_Derived_Type_Link);
8864    pragma Inline (Set_Digits_Value);
8865    pragma Inline (Set_Direct_Primitive_Operations);
8866    pragma Inline (Set_Directly_Designated_Type);
8867    pragma Inline (Set_Disable_Controlled);
8868    pragma Inline (Set_Discard_Names);
8869    pragma Inline (Set_Discriminal);
8870    pragma Inline (Set_Discriminal_Link);
8871    pragma Inline (Set_Discriminant_Checking_Func);
8872    pragma Inline (Set_Discriminant_Constraint);
8873    pragma Inline (Set_Discriminant_Default_Value);
8874    pragma Inline (Set_Discriminant_Number);
8875    pragma Inline (Set_Dispatch_Table_Wrappers);
8876    pragma Inline (Set_DT_Entry_Count);
8877    pragma Inline (Set_DT_Offset_To_Top_Func);
8878    pragma Inline (Set_DT_Position);
8879    pragma Inline (Set_DTC_Entity);
8880    pragma Inline (Set_Elaborate_Body_Desirable);
8881    pragma Inline (Set_Elaboration_Entity);
8882    pragma Inline (Set_Elaboration_Entity_Required);
8883    pragma Inline (Set_Encapsulating_State);
8884    pragma Inline (Set_Enclosing_Scope);
8885    pragma Inline (Set_Entry_Accepted);
8886    pragma Inline (Set_Entry_Bodies_Array);
8887    pragma Inline (Set_Entry_Cancel_Parameter);
8888    pragma Inline (Set_Entry_Component);
8889    pragma Inline (Set_Entry_Formal);
8890    pragma Inline (Set_Entry_Parameters_Type);
8891    pragma Inline (Set_Enum_Pos_To_Rep);
8892    pragma Inline (Set_Enumeration_Pos);
8893    pragma Inline (Set_Enumeration_Rep);
8894    pragma Inline (Set_Enumeration_Rep_Expr);
8895    pragma Inline (Set_Equivalent_Type);
8896    pragma Inline (Set_Esize);
8897    pragma Inline (Set_Extra_Accessibility);
8898    pragma Inline (Set_Extra_Accessibility_Of_Result);
8899    pragma Inline (Set_Extra_Constrained);
8900    pragma Inline (Set_Extra_Formal);
8901    pragma Inline (Set_Extra_Formals);
8902    pragma Inline (Set_Finalization_Master);
8903    pragma Inline (Set_Finalizer);
8904    pragma Inline (Set_First_Entity);
8905    pragma Inline (Set_First_Exit_Statement);
8906    pragma Inline (Set_First_Index);
8907    pragma Inline (Set_First_Literal);
8908    pragma Inline (Set_First_Private_Entity);
8909    pragma Inline (Set_First_Rep_Item);
8910    pragma Inline (Set_Freeze_Node);
8911    pragma Inline (Set_From_Limited_With);
8912    pragma Inline (Set_Full_View);
8913    pragma Inline (Set_Generic_Homonym);
8914    pragma Inline (Set_Generic_Renamings);
8915    pragma Inline (Set_Handler_Records);
8916    pragma Inline (Set_Has_Aliased_Components);
8917    pragma Inline (Set_Has_Alignment_Clause);
8918    pragma Inline (Set_Has_All_Calls_Remote);
8919    pragma Inline (Set_Has_Atomic_Components);
8920    pragma Inline (Set_Has_Biased_Representation);
8921    pragma Inline (Set_Has_Completion);
8922    pragma Inline (Set_Has_Completion_In_Body);
8923    pragma Inline (Set_Has_Complex_Representation);
8924    pragma Inline (Set_Has_Component_Size_Clause);
8925    pragma Inline (Set_Has_Constrained_Partial_View);
8926    pragma Inline (Set_Has_Contiguous_Rep);
8927    pragma Inline (Set_Has_Controlled_Component);
8928    pragma Inline (Set_Has_Controlling_Result);
8929    pragma Inline (Set_Has_Convention_Pragma);
8930    pragma Inline (Set_Has_Default_Aspect);
8931    pragma Inline (Set_Has_Default_Init_Cond);
8932    pragma Inline (Set_Has_Delayed_Aspects);
8933    pragma Inline (Set_Has_Delayed_Freeze);
8934    pragma Inline (Set_Has_Delayed_Rep_Aspects);
8935    pragma Inline (Set_Has_Discriminants);
8936    pragma Inline (Set_Has_Dispatch_Table);
8937    pragma Inline (Set_Has_Dynamic_Predicate_Aspect);
8938    pragma Inline (Set_Has_Enumeration_Rep_Clause);
8939    pragma Inline (Set_Has_Exit);
8940    pragma Inline (Set_Has_Expanded_Contract);
8941    pragma Inline (Set_Has_Forward_Instantiation);
8942    pragma Inline (Set_Has_Fully_Qualified_Name);
8943    pragma Inline (Set_Has_Gigi_Rep_Item);
8944    pragma Inline (Set_Has_Homonym);
8945    pragma Inline (Set_Has_Implicit_Dereference);
8946    pragma Inline (Set_Has_Independent_Components);
8947    pragma Inline (Set_Has_Inheritable_Invariants);
8948    pragma Inline (Set_Has_Inherited_Default_Init_Cond);
8949    pragma Inline (Set_Has_Inherited_Invariants);
8950    pragma Inline (Set_Has_Initial_Value);
8951    pragma Inline (Set_Has_Loop_Entry_Attributes);
8952    pragma Inline (Set_Has_Machine_Radix_Clause);
8953    pragma Inline (Set_Has_Master_Entity);
8954    pragma Inline (Set_Has_Missing_Return);
8955    pragma Inline (Set_Has_Nested_Block_With_Handler);
8956    pragma Inline (Set_Has_Nested_Subprogram);
8957    pragma Inline (Set_Has_Non_Standard_Rep);
8958    pragma Inline (Set_Has_Object_Size_Clause);
8959    pragma Inline (Set_Has_Out_Or_In_Out_Parameter);
8960    pragma Inline (Set_Has_Own_Invariants);
8961    pragma Inline (Set_Has_Per_Object_Constraint);
8962    pragma Inline (Set_Has_Pragma_Controlled);
8963    pragma Inline (Set_Has_Pragma_Elaborate_Body);
8964    pragma Inline (Set_Has_Pragma_Inline);
8965    pragma Inline (Set_Has_Pragma_Inline_Always);
8966    pragma Inline (Set_Has_Pragma_No_Inline);
8967    pragma Inline (Set_Has_Pragma_Ordered);
8968    pragma Inline (Set_Has_Pragma_Pack);
8969    pragma Inline (Set_Has_Pragma_Preelab_Init);
8970    pragma Inline (Set_Has_Pragma_Pure);
8971    pragma Inline (Set_Has_Pragma_Pure_Function);
8972    pragma Inline (Set_Has_Pragma_Thread_Local_Storage);
8973    pragma Inline (Set_Has_Pragma_Unmodified);
8974    pragma Inline (Set_Has_Pragma_Unreferenced);
8975    pragma Inline (Set_Has_Pragma_Unreferenced_Objects);
8976    pragma Inline (Set_Has_Predicates);
8977    pragma Inline (Set_Has_Primitive_Operations);
8978    pragma Inline (Set_Has_Private_Ancestor);
8979    pragma Inline (Set_Has_Private_Declaration);
8980    pragma Inline (Set_Has_Protected);
8981    pragma Inline (Set_Has_Qualified_Name);
8982    pragma Inline (Set_Has_RACW);
8983    pragma Inline (Set_Has_Record_Rep_Clause);
8984    pragma Inline (Set_Has_Recursive_Call);
8985    pragma Inline (Set_Has_Shift_Operator);
8986    pragma Inline (Set_Has_Size_Clause);
8987    pragma Inline (Set_Has_Small_Clause);
8988    pragma Inline (Set_Has_Specified_Layout);
8989    pragma Inline (Set_Has_Specified_Stream_Input);
8990    pragma Inline (Set_Has_Specified_Stream_Output);
8991    pragma Inline (Set_Has_Specified_Stream_Read);
8992    pragma Inline (Set_Has_Specified_Stream_Write);
8993    pragma Inline (Set_Has_Static_Discriminants);
8994    pragma Inline (Set_Has_Static_Predicate);
8995    pragma Inline (Set_Has_Static_Predicate_Aspect);
8996    pragma Inline (Set_Has_Storage_Size_Clause);
8997    pragma Inline (Set_Has_Stream_Size_Clause);
8998    pragma Inline (Set_Has_Task);
8999    pragma Inline (Set_Has_Timing_Event);
9000    pragma Inline (Set_Has_Thunks);
9001    pragma Inline (Set_Has_Unchecked_Union);
9002    pragma Inline (Set_Has_Unknown_Discriminants);
9003    pragma Inline (Set_Has_Visible_Refinement);
9004    pragma Inline (Set_Has_Volatile_Components);
9005    pragma Inline (Set_Has_Xref_Entry);
9006    pragma Inline (Set_Hiding_Loop_Variable);
9007    pragma Inline (Set_Homonym);
9008    pragma Inline (Set_Import_Pragma);
9009    pragma Inline (Set_Incomplete_Actuals);
9010    pragma Inline (Set_In_Package_Body);
9011    pragma Inline (Set_In_Private_Part);
9012    pragma Inline (Set_In_Use);
9013    pragma Inline (Set_Inner_Instances);
9014    pragma Inline (Set_Interface_Alias);
9015    pragma Inline (Set_Interface_Name);
9016    pragma Inline (Set_Interfaces);
9017    pragma Inline (Set_Is_Abstract_Subprogram);
9018    pragma Inline (Set_Is_Abstract_Type);
9019    pragma Inline (Set_Is_Access_Constant);
9020    pragma Inline (Set_Is_Actual_Subtype);
9021    pragma Inline (Set_Is_Ada_2005_Only);
9022    pragma Inline (Set_Is_Ada_2012_Only);
9023    pragma Inline (Set_Is_Aliased);
9024    pragma Inline (Set_Is_Asynchronous);
9025    pragma Inline (Set_Is_Atomic);
9026    pragma Inline (Set_Is_Bit_Packed_Array);
9027    pragma Inline (Set_Is_Called);
9028    pragma Inline (Set_Is_Character_Type);
9029    pragma Inline (Set_Is_Checked_Ghost_Entity);
9030    pragma Inline (Set_Is_Child_Unit);
9031    pragma Inline (Set_Is_Class_Wide_Equivalent_Type);
9032    pragma Inline (Set_Is_Compilation_Unit);
9033    pragma Inline (Set_Is_Completely_Hidden);
9034    pragma Inline (Set_Is_Concurrent_Record_Type);
9035    pragma Inline (Set_Is_Constr_Subt_For_U_Nominal);
9036    pragma Inline (Set_Is_Constr_Subt_For_UN_Aliased);
9037    pragma Inline (Set_Is_Constrained);
9038    pragma Inline (Set_Is_Constructor);
9039    pragma Inline (Set_Is_Controlled);
9040    pragma Inline (Set_Is_Controlling_Formal);
9041    pragma Inline (Set_Is_CPP_Class);
9042    pragma Inline (Set_Is_Default_Init_Cond_Procedure);
9043    pragma Inline (Set_Is_Descendant_Of_Address);
9044    pragma Inline (Set_Is_Discrim_SO_Function);
9045    pragma Inline (Set_Is_Discriminant_Check_Function);
9046    pragma Inline (Set_Is_Dispatch_Table_Entity);
9047    pragma Inline (Set_Is_Dispatching_Operation);
9048    pragma Inline (Set_Is_Eliminated);
9049    pragma Inline (Set_Is_Entry_Formal);
9050    pragma Inline (Set_Is_Exception_Handler);
9051    pragma Inline (Set_Is_Exported);
9052    pragma Inline (Set_Is_First_Subtype);
9053    pragma Inline (Set_Is_For_Access_Subtype);
9054    pragma Inline (Set_Is_Formal_Subprogram);
9055    pragma Inline (Set_Is_Frozen);
9056    pragma Inline (Set_Is_Generic_Actual_Subprogram);
9057    pragma Inline (Set_Is_Generic_Actual_Type);
9058    pragma Inline (Set_Is_Generic_Instance);
9059    pragma Inline (Set_Is_Generic_Type);
9060    pragma Inline (Set_Is_Hidden);
9061    pragma Inline (Set_Is_Hidden_Non_Overridden_Subpgm);
9062    pragma Inline (Set_Is_Hidden_Open_Scope);
9063    pragma Inline (Set_Is_Ignored_Ghost_Entity);
9064    pragma Inline (Set_Is_Immediately_Visible);
9065    pragma Inline (Set_Is_Implementation_Defined);
9066    pragma Inline (Set_Is_Imported);
9067    pragma Inline (Set_Is_Independent);
9068    pragma Inline (Set_Is_Inlined);
9069    pragma Inline (Set_Is_Inlined_Always);
9070    pragma Inline (Set_Is_Instantiated);
9071    pragma Inline (Set_Is_Interface);
9072    pragma Inline (Set_Is_Internal);
9073    pragma Inline (Set_Is_Interrupt_Handler);
9074    pragma Inline (Set_Is_Intrinsic_Subprogram);
9075    pragma Inline (Set_Is_Invariant_Procedure);
9076    pragma Inline (Set_Is_Itype);
9077    pragma Inline (Set_Is_Known_Non_Null);
9078    pragma Inline (Set_Is_Known_Null);
9079    pragma Inline (Set_Is_Known_Valid);
9080    pragma Inline (Set_Is_Limited_Composite);
9081    pragma Inline (Set_Is_Limited_Interface);
9082    pragma Inline (Set_Is_Limited_Record);
9083    pragma Inline (Set_Is_Local_Anonymous_Access);
9084    pragma Inline (Set_Is_Machine_Code_Subprogram);
9085    pragma Inline (Set_Is_Non_Static_Subtype);
9086    pragma Inline (Set_Is_Null_Init_Proc);
9087    pragma Inline (Set_Is_Obsolescent);
9088    pragma Inline (Set_Is_Only_Out_Parameter);
9089    pragma Inline (Set_Is_Package_Body_Entity);
9090    pragma Inline (Set_Is_Packed);
9091    pragma Inline (Set_Is_Packed_Array_Impl_Type);
9092    pragma Inline (Set_Is_Param_Block_Component_Type);
9093    pragma Inline (Set_Is_Partial_Invariant_Procedure);
9094    pragma Inline (Set_Is_Potentially_Use_Visible);
9095    pragma Inline (Set_Is_Predicate_Function);
9096    pragma Inline (Set_Is_Predicate_Function_M);
9097    pragma Inline (Set_Is_Preelaborated);
9098    pragma Inline (Set_Is_Primitive);
9099    pragma Inline (Set_Is_Primitive_Wrapper);
9100    pragma Inline (Set_Is_Private_Composite);
9101    pragma Inline (Set_Is_Private_Descendant);
9102    pragma Inline (Set_Is_Private_Primitive);
9103    pragma Inline (Set_Is_Processed_Transient);
9104    pragma Inline (Set_Is_Public);
9105    pragma Inline (Set_Is_Pure);
9106    pragma Inline (Set_Is_Pure_Unit_Access_Type);
9107    pragma Inline (Set_Is_RACW_Stub_Type);
9108    pragma Inline (Set_Is_Raised);
9109    pragma Inline (Set_Is_Remote_Call_Interface);
9110    pragma Inline (Set_Is_Remote_Types);
9111    pragma Inline (Set_Is_Renaming_Of_Object);
9112    pragma Inline (Set_Is_Return_Object);
9113    pragma Inline (Set_Is_Safe_To_Reevaluate);
9114    pragma Inline (Set_Is_Shared_Passive);
9115    pragma Inline (Set_Is_Static_Type);
9116    pragma Inline (Set_Is_Statically_Allocated);
9117    pragma Inline (Set_Is_Tag);
9118    pragma Inline (Set_Is_Tagged_Type);
9119    pragma Inline (Set_Is_Thunk);
9120    pragma Inline (Set_Is_Trivial_Subprogram);
9121    pragma Inline (Set_Is_True_Constant);
9122    pragma Inline (Set_Is_Unchecked_Union);
9123    pragma Inline (Set_Is_Underlying_Record_View);
9124    pragma Inline (Set_Is_Unimplemented);
9125    pragma Inline (Set_Is_Unsigned_Type);
9126    pragma Inline (Set_Is_Uplevel_Referenced_Entity);
9127    pragma Inline (Set_Is_Valued_Procedure);
9128    pragma Inline (Set_Is_Visible_Formal);
9129    pragma Inline (Set_Is_Visible_Lib_Unit);
9130    pragma Inline (Set_Is_Volatile);
9131    pragma Inline (Set_Is_Volatile_Full_Access);
9132    pragma Inline (Set_Itype_Printed);
9133    pragma Inline (Set_Kill_Elaboration_Checks);
9134    pragma Inline (Set_Kill_Range_Checks);
9135    pragma Inline (Set_Known_To_Have_Preelab_Init);
9136    pragma Inline (Set_Last_Aggregate_Assignment);
9137    pragma Inline (Set_Last_Assignment);
9138    pragma Inline (Set_Last_Entity);
9139    pragma Inline (Set_Limited_View);
9140    pragma Inline (Set_Linker_Section_Pragma);
9141    pragma Inline (Set_Lit_Indexes);
9142    pragma Inline (Set_Lit_Strings);
9143    pragma Inline (Set_Low_Bound_Tested);
9144    pragma Inline (Set_Machine_Radix_10);
9145    pragma Inline (Set_Master_Id);
9146    pragma Inline (Set_Materialize_Entity);
9147    pragma Inline (Set_May_Inherit_Delayed_Rep_Aspects);
9148    pragma Inline (Set_Mechanism);
9149    pragma Inline (Set_Modulus);
9150    pragma Inline (Set_Must_Be_On_Byte_Boundary);
9151    pragma Inline (Set_Must_Have_Preelab_Init);
9152    pragma Inline (Set_Needs_Debug_Info);
9153    pragma Inline (Set_Needs_No_Actuals);
9154    pragma Inline (Set_Never_Set_In_Source);
9155    pragma Inline (Set_Next_Inlined_Subprogram);
9156    pragma Inline (Set_No_Dynamic_Predicate_On_Actual);
9157    pragma Inline (Set_No_Pool_Assigned);
9158    pragma Inline (Set_No_Predicate_On_Actual);
9159    pragma Inline (Set_No_Return);
9160    pragma Inline (Set_No_Strict_Aliasing);
9161    pragma Inline (Set_No_Tagged_Streams_Pragma);
9162    pragma Inline (Set_Non_Binary_Modulus);
9163    pragma Inline (Set_Non_Limited_View);
9164    pragma Inline (Set_Nonzero_Is_True);
9165    pragma Inline (Set_Normalized_First_Bit);
9166    pragma Inline (Set_Normalized_Position);
9167    pragma Inline (Set_Normalized_Position_Max);
9168    pragma Inline (Set_OK_To_Rename);
9169    pragma Inline (Set_OK_To_Reorder_Components);
9170    pragma Inline (Set_Optimize_Alignment_Space);
9171    pragma Inline (Set_Optimize_Alignment_Time);
9172    pragma Inline (Set_Original_Access_Type);
9173    pragma Inline (Set_Original_Array_Type);
9174    pragma Inline (Set_Original_Protected_Subprogram);
9175    pragma Inline (Set_Original_Record_Component);
9176    pragma Inline (Set_Overlays_Constant);
9177    pragma Inline (Set_Overridden_Operation);
9178    pragma Inline (Set_Package_Instantiation);
9179    pragma Inline (Set_Packed_Array_Impl_Type);
9180    pragma Inline (Set_Parent_Subtype);
9181    pragma Inline (Set_Part_Of_Constituents);
9182    pragma Inline (Set_Part_Of_References);
9183    pragma Inline (Set_Partial_View_Has_Unknown_Discr);
9184    pragma Inline (Set_Pending_Access_Types);
9185    pragma Inline (Set_Postconditions_Proc);
9186    pragma Inline (Set_Predicates_Ignored);
9187    pragma Inline (Set_Prival);
9188    pragma Inline (Set_Prival_Link);
9189    pragma Inline (Set_Private_Dependents);
9190    pragma Inline (Set_Private_View);
9191    pragma Inline (Set_Protected_Body_Subprogram);
9192    pragma Inline (Set_Protected_Formal);
9193    pragma Inline (Set_Protection_Object);
9194    pragma Inline (Set_Reachable);
9195    pragma Inline (Set_Referenced);
9196    pragma Inline (Set_Referenced_As_LHS);
9197    pragma Inline (Set_Referenced_As_Out_Parameter);
9198    pragma Inline (Set_Refinement_Constituents);
9199    pragma Inline (Set_Register_Exception_Call);
9200    pragma Inline (Set_Related_Array_Object);
9201    pragma Inline (Set_Related_Expression);
9202    pragma Inline (Set_Related_Instance);
9203    pragma Inline (Set_Related_Type);
9204    pragma Inline (Set_Relative_Deadline_Variable);
9205    pragma Inline (Set_Renamed_Entity);
9206    pragma Inline (Set_Renamed_In_Spec);
9207    pragma Inline (Set_Renamed_Object);
9208    pragma Inline (Set_Renaming_Map);
9209    pragma Inline (Set_Requires_Overriding);
9210    pragma Inline (Set_Return_Applies_To);
9211    pragma Inline (Set_Return_Present);
9212    pragma Inline (Set_Returns_By_Ref);
9213    pragma Inline (Set_Returns_Limited_View);
9214    pragma Inline (Set_Reverse_Bit_Order);
9215    pragma Inline (Set_Reverse_Storage_Order);
9216    pragma Inline (Set_Rewritten_For_C);
9217    pragma Inline (Set_RM_Size);
9218    pragma Inline (Set_Scalar_Range);
9219    pragma Inline (Set_Scale_Value);
9220    pragma Inline (Set_Scope_Depth_Value);
9221    pragma Inline (Set_Sec_Stack_Needed_For_Return);
9222    pragma Inline (Set_Shadow_Entities);
9223    pragma Inline (Set_Shared_Var_Procs_Instance);
9224    pragma Inline (Set_Size_Check_Code);
9225    pragma Inline (Set_Size_Depends_On_Discriminant);
9226    pragma Inline (Set_Size_Known_At_Compile_Time);
9227    pragma Inline (Set_Small_Value);
9228    pragma Inline (Set_SPARK_Aux_Pragma);
9229    pragma Inline (Set_SPARK_Aux_Pragma_Inherited);
9230    pragma Inline (Set_SPARK_Pragma);
9231    pragma Inline (Set_SPARK_Pragma_Inherited);
9232    pragma Inline (Set_Spec_Entity);
9233    pragma Inline (Set_SSO_Set_High_By_Default);
9234    pragma Inline (Set_SSO_Set_Low_By_Default);
9235    pragma Inline (Set_Static_Discrete_Predicate);
9236    pragma Inline (Set_Static_Elaboration_Desired);
9237    pragma Inline (Set_Static_Initialization);
9238    pragma Inline (Set_Static_Real_Or_String_Predicate);
9239    pragma Inline (Set_Status_Flag_Or_Transient_Decl);
9240    pragma Inline (Set_Storage_Size_Variable);
9241    pragma Inline (Set_Stored_Constraint);
9242    pragma Inline (Set_Stores_Attribute_Old_Prefix);
9243    pragma Inline (Set_Strict_Alignment);
9244    pragma Inline (Set_String_Literal_Length);
9245    pragma Inline (Set_String_Literal_Low_Bound);
9246    pragma Inline (Set_Subprograms_For_Type);
9247    pragma Inline (Set_Subps_Index);
9248    pragma Inline (Set_Suppress_Elaboration_Warnings);
9249    pragma Inline (Set_Suppress_Initialization);
9250    pragma Inline (Set_Suppress_Style_Checks);
9251    pragma Inline (Set_Suppress_Value_Tracking_On_Call);
9252    pragma Inline (Set_Task_Body_Procedure);
9253    pragma Inline (Set_Thunk_Entity);
9254    pragma Inline (Set_Treat_As_Volatile);
9255    pragma Inline (Set_Underlying_Full_View);
9256    pragma Inline (Set_Underlying_Record_View);
9257    pragma Inline (Set_Universal_Aliasing);
9258    pragma Inline (Set_Unset_Reference);
9259    pragma Inline (Set_Used_As_Generic_Actual);
9260    pragma Inline (Set_Uses_Lock_Free);
9261    pragma Inline (Set_Uses_Sec_Stack);
9262    pragma Inline (Set_Warnings_Off);
9263    pragma Inline (Set_Warnings_Off_Used);
9264    pragma Inline (Set_Warnings_Off_Used_Unmodified);
9265    pragma Inline (Set_Warnings_Off_Used_Unreferenced);
9266    pragma Inline (Set_Was_Hidden);
9267    pragma Inline (Set_Wrapped_Entity);
9268 
9269    --  END XEINFO INLINES
9270 
9271    --  The following Inline pragmas are *not* read by xeinfo when building the
9272    --  C version of this interface automatically (so the C version will end up
9273    --  making out of line calls). The pragma scan in xeinfo will be terminated
9274    --  on encountering the END XEINFO INLINES line. We inline things here which
9275    --  are small, but not of the canonical attribute access/set format that can
9276    --  be handled by xeinfo.
9277 
9278    pragma Inline (Base_Type);
9279    pragma Inline (Is_Base_Type);
9280    pragma Inline (Is_Controlled_Active);
9281    pragma Inline (Is_Package_Or_Generic_Package);
9282    pragma Inline (Is_Packed_Array);
9283    pragma Inline (Is_Subprogram_Or_Generic_Subprogram);
9284    pragma Inline (Is_Volatile);
9285    pragma Inline (Is_Wrapper_Package);
9286    pragma Inline (Known_RM_Size);
9287    pragma Inline (Known_Static_Component_Bit_Offset);
9288    pragma Inline (Known_Static_RM_Size);
9289    pragma Inline (Scope_Depth);
9290    pragma Inline (Scope_Depth_Set);
9291    pragma Inline (Unknown_RM_Size);
9292 
9293 end Einfo;