Patchwork [Ada] Internal terminology change in compiler sources

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Submitter Arnaud Charlet
Date Oct. 29, 2012, 10:08 a.m.
Message ID <20121029100818.GA21003@adacore.com>
Download mbox | patch
Permalink /patch/194936/
State New
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Arnaud Charlet - Oct. 29, 2012, 10:08 a.m.
Comment change only, no functional change, no test required

Tested on x86_64-pc-linux-gnu, committed on trunk

2012-10-29  Robert Dewar  <dewar@adacore.com>

	* einfo.ads: Change terminology "present" to "defined" in talking
	about whether a given field is defined for a given entity kind.

Patch

Index: einfo.ads
===================================================================
--- einfo.ads	(revision 192908)
+++ einfo.ads	(working copy)
@@ -328,7 +328,7 @@ 
 --  subtype will raise an assert error.
 
 --    Accept_Address (Elist21)
---       Present in entries. If an accept has a statement sequence, then an
+--       Defined in entries. If an accept has a statement sequence, then an
 --       address variable is created, which is used to hold the address of the
 --       parameters, as passed by the runtime. Accept_Address holds an element
 --       list which represents a stack of entities for these address variables.
@@ -337,7 +337,7 @@ 
 --       statements referencing the same entry.
 
 --    Access_Disp_Table (Elist16) [implementation base type only]
---       Present in E_Record_Type and E_Record_Subtype entities. Set in tagged
+--       Defined in E_Record_Type and E_Record_Subtype entities. Set in tagged
 --       types to point to their dispatch tables. The first two entities are
 --       associated with the primary dispatch table: 1) primary dispatch table
 --       with user-defined primitives 2) primary dispatch table with predefined
@@ -351,7 +351,7 @@ 
 --       For a non-tagged record, contains No_Elist.
 
 --    Actual_Subtype (Node17)
---       Present in variables, constants, and formal parameters. This is the
+--       Defined in variables, constants, and formal parameters. This is the
 --       subtype imposed by the value of the object, as opposed to its nominal
 --       subtype, which is imposed by the declaration. The actual subtype
 --       differs from the nominal one when the latter is indefinite (as in the
@@ -377,7 +377,7 @@ 
 --       Note: Gigi references this field in E_Task_Type entities???
 
 --    Address_Taken (Flag104)
---       Present in all entities. Set if the Address or Unrestricted_Access
+--       Defined in all entities. Set if the Address or Unrestricted_Access
 --       attribute is applied directly to the entity, i.e. the entity is the
 --       entity of the prefix of the attribute reference. Also set if the
 --       entity is the second argument of an Asm_Input or Asm_Output attribute,
@@ -390,7 +390,7 @@ 
 --       that holds value of the Aft attribute for the type.
 
 --    Alias (Node18)
---       Present in overloadable entities (literals, subprograms, entries) and
+--       Defined in overloadable entities (literals, subprograms, entries) and
 --       subprograms that cover a primitive operation of an abstract interface
 --       (that is, subprograms with the Interface_Alias attribute). In case of
 --       overloaded entities it points to the parent subprogram of a derived
@@ -404,7 +404,7 @@ 
 --       because it hides the implicit one. Alias is always empty for entries.
 
 --    Alignment (Uint14)
---       Present in entities for types and also in constants, variables
+--       Defined in entities for types and also in constants, variables
 --       (including exceptions where it refers to the static data allocated for
 --       an exception), loop parameters, and formal parameters. This indicates
 --       the desired alignment for a type, or the actual alignment for an
@@ -412,7 +412,7 @@ 
 --       been set yet. The alignment can be set by an explicit alignment
 --       clause, or set by the front-end in package Layout, or set by the
 --       back-end as part of the back end back-annotation process. The
---       alignment field is also present in E_Exception entities, but there it
+--       alignment field is also defined in E_Exception entities, but there it
 --       is used only by the back-end for back annotation.
 
 --    Alignment_Clause (synthesized)
@@ -427,11 +427,11 @@ 
 --       into an attribute definition clause for this purpose.
 
 --    Associated_Formal_Package (Node12)
---       Present in packages that are the actuals of formal_packages. Points
+--       Defined in packages that are the actuals of formal_packages. Points
 --       to the entity in the declaration for the formal package.
 
 --    Associated_Node_For_Itype (Node8)
---       Present in all type and subtype entities. Set non-Empty only for
+--       Defined in all type and subtype entities. Set non-Empty only for
 --       Itypes. Set to point to the associated node for the Itype, i.e.
 --       the node whose elaboration generated the Itype. This is used for
 --       copying trees, to determine whether or not to copy an Itype, and
@@ -448,14 +448,14 @@ 
 --       creation of a given itype entity.
 
 --    Associated_Storage_Pool (Node22) [root type only]
---       Present in simple and general access type entities. References the
+--       Defined in simple and general access type entities. References the
 --       storage pool to be used for the corresponding collection. A value of
---       Empty means that the default pool is to be used. This is present
+--       Empty means that the default pool is to be used. This is defined
 --       only in the root type, since derived types must have the same pool
 --       as the parent type.
 
 --    Barrier_Function (Node12)
---       Present in protected entries and entry families. This is the
+--       Defined in protected entries and entry families. This is the
 --       subprogram declaration for the body of the function that returns
 --       the value of the entry barrier.
 
@@ -471,7 +471,7 @@ 
 --       the entity unchanged.
 
 --    Block_Node (Node11)
---       Present in block entities. Points to the identifier in the
+--       Defined in block entities. Points to the identifier in the
 --       Block_Statement itself. Used when retrieving the block construct
 --       for finalization purposes, The block entity has an implicit label
 --       declaration in the enclosing declarative part, and has otherwise
@@ -481,16 +481,16 @@ 
 --       be rewritten, e.g. in the process of removing dead code.
 
 --    Body_Entity (Node19)
---       Present in package and generic package entities, points to the
+--       Defined in package and generic package entities, points to the
 --       corresponding package body entity if one is present.
 
 --    Body_Needed_For_SAL (Flag40)
---       Present in package and subprogram entities that are compilation
+--       Defined in package and subprogram entities that are compilation
 --       units. Indicates that the source for the body must be included
 --       when the unit is part of a standalone library.
 
 --    C_Pass_By_Copy (Flag125) [implementation base type only]
---       Present in record types. Set if a pragma Convention for the record
+--       Defined in record types. Set if a pragma Convention for the record
 --       type specifies convention C_Pass_By_Copy. This convention name is
 --       treated as identical in all respects to convention C, except that
 --       if it is specified for a record type, then the C_Pass_By_Copy flag
@@ -500,7 +500,7 @@ 
 --       Export pragma).
 
 --    Can_Never_Be_Null (Flag38)
---       This flag is present in all entities, but can only be set in an object
+--       This flag is defined in all entities, but can only be set in an object
 --       which can never have a null value. This is set True for constant
 --       access values initialized to a non-null value. This is also True for
 --       all access parameters in Ada 83 and Ada 95 modes, and for access
@@ -515,7 +515,7 @@ 
 --       anonymous access type of a controlling formal.
 
 --    Can_Use_Internal_Rep (Flag229) [base type only]
---       Present in Access_Subprogram_Kind nodes. This flag is set by the
+--       Defined in Access_Subprogram_Kind nodes. This flag is set by the
 --       front end and used by the back end. False means that the back end
 --       must represent the type in the same way as Convention-C types (and
 --       other foreign-convention types). On many targets, this means that
@@ -546,7 +546,7 @@ 
 --       have convention Ada.
 
 --    Chars (Name1)
---       Present in all entities. This field contains an entry into the names
+--       Defined in all entities. This field contains an entry into the names
 --       table that has the character string of the identifier, character
 --       literal or operator symbol. See Namet for further details. Note that
 --       throughout the processing of the front end, this name is the simple
@@ -557,19 +557,19 @@ 
 --       entities will contain the encoded qualified names.
 
 --    Checks_May_Be_Suppressed (Flag31)
---       Present in all entities. Set if a pragma Suppress or Unsuppress
+--       Defined in all entities. Set if a pragma Suppress or Unsuppress
 --       mentions the entity specifically in the second argument. If this
 --       flag is set the Global_Entity_Suppress and Local_Entity_Suppress
 --       tables must be consulted to determine if there actually is an active
 --       Suppress or Unsuppress pragma that applies to the entity.
 
 --    Class_Wide_Type (Node9)
---       Present in all type entities. For a tagged type or subtype, returns
+--       Defined in all type entities. For a tagged type or subtype, returns
 --       the corresponding implicitly declared class-wide type. For a
 --       class-wide type, returns itself. Set to Empty for non-tagged types.
 
 --    Cloned_Subtype (Node16)
---       Present in E_Record_Subtype and E_Class_Wide_Subtype entities.
+--       Defined in E_Record_Subtype and E_Class_Wide_Subtype entities.
 --       Each such entity can either have a Discriminant_Constraint, in
 --       which case it represents a distinct type from the base type (and
 --       will have a list of components and discrimants in the list headed by
@@ -588,7 +588,7 @@ 
 --
 --       For E_Class_Wide_Subtype, the presence of Equivalent_Type overrides
 --       this field. Note that this field ONLY appears in subtype entries, not
---       in type entries, it is not present, and it is an error to reference
+--       in type entries, it is not defined, and it is an error to reference
 --       Cloned_Subtype in an E_Record_Type or E_Class_Wide_Type entity.
 
 --    Comes_From_Source
@@ -598,14 +598,14 @@ 
 --       in the original source program.
 
 --    Component_Alignment (special field) [base type only]
---       Present in array and record entities. Contains a value of type
+--       Defined in array and record entities. Contains a value of type
 --       Component_Alignment_Kind indicating the alignment of components.
 --       Set to Calign_Default normally, but can be overridden by use of
 --       the Component_Alignment pragma. Note: this field is currently
 --       stored in a non-standard way, see body for details.
 
 --    Component_Bit_Offset (Uint11)
---       Present in record components (E_Component, E_Discriminant) if a
+--       Defined in record components (E_Component, E_Discriminant) if a
 --       component clause applies to the component. First bit position of
 --       given component, computed from the first bit and position values
 --       given in the component clause. A value of No_Uint means that the
@@ -624,7 +624,7 @@ 
 --       use in Gigi, to have this redundant field.
 
 --    Component_Clause (Node13)
---       Present in record components and discriminants. If a record
+--       Defined in record components and discriminants. If a record
 --       representation clause is present for the corresponding record type a
 --       that specifies a position for the component, then the Component_Clause
 --       field of the E_Component entity points to the N_Component_Clause node.
@@ -632,7 +632,7 @@ 
 --       there was no specification for this component.
 
 --    Component_Size (Uint22) [implementation base type only]
---       Present in array types. It contains the component size value for
+--       Defined in array types. It contains the component size value for
 --       the array. A value of No_Uint means that the value is not yet set.
 --       The value can be set by the use of a component size clause, or
 --       by the front end in package Layout, or by the backend. A negative
@@ -642,55 +642,55 @@ 
 --       for details of these values.
 
 --    Component_Type (Node20) [implementation base type only]
---       Present in array types and string types. References component type.
+--       Defined in array types and string types. References component type.
 
 --    Corresponding_Concurrent_Type (Node18)
---       Present in record types that are constructed by the expander to
+--       Defined in record types that are constructed by the expander to
 --       represent task and protected types (Is_Concurrent_Record_Type flag
 --       set True). Points to the entity for the corresponding task type or
 --       protected type.
 
 --    Corresponding_Discriminant (Node19)
---       Present in discriminants of a derived type, when the discriminant is
+--       Defined in discriminants of a derived type, when the discriminant is
 --       used to constrain a discriminant of the parent type. Points to the
 --       corresponding discriminant in the parent type. Otherwise it is Empty.
 
 --    Corresponding_Equality (Node13)
---       Present in function entities for implicit inequality operators.
+--       Defined in function entities for implicit inequality operators.
 --       Denotes the explicit or derived equality operation that creates
 --       the implicit inequality. Note that this field is not present in
 --       other function entities, only in implicit inequality routines,
 --       where Comes_From_Source is always False.
 
 --    Corresponding_Protected_Entry (Node18)
---       Present in subprogram bodies. Set for subprogram bodies that implement
+--       Defined in subprogram bodies. Set for subprogram bodies that implement
 --       a protected type entry to point to the entity for the entry.
 
 --    Corresponding_Record_Type (Node18)
---       Present in protected and task types and subtypes. References the
+--       Defined in protected and task types and subtypes. References the
 --       entity for the corresponding record type constructed by the expander
 --       (see Exp_Ch9). This type is used to represent values of the task type.
 
 --    Corresponding_Remote_Type (Node22)
---       Present in record types that describe the fat pointer structure for
+--       Defined in record types that describe the fat pointer structure for
 --       Remote_Access_To_Subprogram types. References the original access
 --       type.
 
 --    CR_Discriminant (Node23)
---       Present in discriminants of concurrent types. Denotes the homologous
+--       Defined in discriminants of concurrent types. Denotes the homologous
 --       discriminant of the corresponding record type. The CR_Discriminant is
 --       created at the same time as the discriminal, and used to replace
 --       occurrences of the discriminant within the type declaration.
 
 --    Current_Use_Clause (Node27)
---       Present in packages and in types. For packages, denotes the use
+--       Defined in packages and in types. For packages, denotes the use
 --       package clause currently in scope that makes the package use_visible.
 --       For types, it denotes the use_type clause that makes the operators of
 --       the type visible. Used for more precise warning messages on redundant
 --       use clauses.
 
 --    Current_Value (Node9)
---       Present in all object entities. Set in E_Variable, E_Constant, formal
+--       Defined in all object entities. Set in E_Variable, E_Constant, formal
 --       parameters and E_Loop_Parameter entities if we have trackable current
 --       values. Set non-Empty if the (constant) current value of the variable
 --       is known, This value is valid only for references from the same
@@ -711,7 +711,7 @@ 
 --       on this usage, see the procedure Exp_Util.Get_Current_Value_Condition.
 
 --    Debug_Info_Off (Flag166)
---       Present in all entities. Set if a pragma Suppress_Debug_Info applies
+--       Defined in all entities. Set if a pragma Suppress_Debug_Info applies
 --       to the entity, or if internal processing in the compiler determines
 --       that suppression of debug information is desirable. Note that this
 --       flag is only for use by the front end as part of the processing for
@@ -735,15 +735,15 @@ 
 --       the subprogram_declaration.
 
 --    Default_Aspect_Component_Value (Node19)
---       Present in array types. Holds the static value specified in a
+--       Defined in array types. Holds the static value specified in a
 --       default_component_value aspect specification for the array type.
 
 --    Default_Aspect_Value (Node19)
---       Present in scalar types. Holds the static value specified in a
+--       Defined in scalar types. Holds the static value specified in a
 --       default_value aspect specification for the type.
 
 --    Default_Expr_Function (Node21)
---       Present in parameters. It holds the entity of the parameterless
+--       Defined in parameters. It holds the entity of the parameterless
 --       function that is built to evaluate the default expression if it is
 --       more complex than a simple identifier or literal. For the latter
 --       simple cases or if there is no default value, this field is Empty.
@@ -756,13 +756,13 @@ 
 --       would not only waste time, but also generate false error messages.
 
 --    Default_Value (Node20)
---       Present in formal parameters. Points to the node representing the
+--       Defined in formal parameters. Points to the node representing the
 --       expression for the default value for the parameter. Empty if the
 --       parameter has no default value (which is always the case for OUT
 --       and IN OUT parameters in the absence of errors).
 
 --    Delay_Cleanups (Flag114)
---       Present in entities that have finalization lists (subprograms
+--       Defined in entities that have finalization lists (subprograms
 --       blocks, and tasks). Set if there are pending generic body
 --       instantiations for the corresponding entity. If this flag is
 --       set, then generation of cleanup actions for the corresponding
@@ -770,9 +770,9 @@ 
 --       may affect cleanup generation (see Inline for further details).
 
 --    Delay_Subprogram_Descriptors (Flag50)
---       Present in entities for which exception subprogram descriptors
+--       Defined in entities for which exception subprogram descriptors
 --       are generated (subprograms, package declarations and package
---       bodies). Present if there are pending generic body instantiations
+--       bodies). Defined if there are pending generic body instantiations
 --       for the corresponding entity. If this flag is set, then generation
 --       of the subprogram descriptor for the corresponding enities must
 --       be delayed, since the insertion of the generic body may add entries
@@ -787,18 +787,18 @@ 
 --       enclosing elaboration procedure).
 
 --    Delta_Value (Ureal18)
---       Present in fixed and decimal types. Points to a universal real
+--       Defined in fixed and decimal types. Points to a universal real
 --       that holds value of delta for the type, as given in the declaration
 --       or as inherited by a subtype or derived type.
 
 --    Dependent_Instances (Elist8)
---       Present in packages that are instances. Holds list of instances
+--       Defined in packages that are instances. Holds list of instances
 --       of inner generics. Used to place freeze nodes for those instances
 --       after that of the current one, i.e. after the corresponding generic
 --       bodies.
 
 --    Depends_On_Private (Flag14)
---       Present in all type entities. Set if the type is private or if it
+--       Defined in all type entities. Set if the type is private or if it
 --       depends on a private type.
 
 --    Designated_Type (synthesized)
@@ -808,20 +808,20 @@ 
 --       full type is returned instead of the incomplete type.
 
 --    Digits_Value (Uint17)
---       Present in floating point types and subtypes and decimal types and
+--       Defined in floating point types and subtypes and decimal types and
 --       subtypes. Contains the Digits value specified in the declaration.
 
 --    Direct_Primitive_Operations (Elist10)
---       Present in tagged types and subtypes (including synchronized types),
+--       Defined in tagged types and subtypes (including synchronized types),
 --       in tagged private types and in tagged incomplete types. Element list
---       of entities for primitive operations of the tagged type. Not present
+--       of entities for primitive operations of the tagged type. Not defined
 --       in untagged types. In order to follow the C++ ABI, entities of
 --       primitives that come from source must be stored in this list in the
 --       order of their occurrence in the sources. For incomplete types the
 --       list is always empty.
 
 --    Directly_Designated_Type (Node20)
---       Present in access types. This field points to the type that is
+--       Defined in access types. This field points to the type that is
 --       directly designated by the access type. In the case of an access
 --       type to an incomplete type, this field references the incomplete
 --       type. Directly_Designated_Type is typically used in implementing the
@@ -831,7 +831,7 @@ 
 --       incomplete type.
 
 --    Discard_Names (Flag88)
---       Present in types and exception entities. Set if pragma Discard_Names
+--       Defined in types and exception entities. Set if pragma Discard_Names
 --       applies to the entity. It is also set for declarative regions and
 --       package specs for which a Discard_Names pragma with zero arguments
 --       has been encountered. The purpose of setting this flag is to be able
@@ -840,23 +840,23 @@ 
 --       set to False if a Keep_Names pragma appears for an enumeration type.
 
 --    Discriminal (Node17)
---       Present in discriminants (Discriminant formal: GNAT's first
+--       Defined in discriminants (Discriminant formal: GNAT's first
 --       coinage). The entity used as a formal parameter that corresponds
 --       to a discriminant. See section "Handling of Discriminants" for
 --       full details of the use of discriminals.
 
 --    Discriminal_Link (Node10)
---       Present in discriminals (which have an Ekind of E_In_Parameter,
+--       Defined in discriminals (which have an Ekind of E_In_Parameter,
 --       or E_Constant), points back to corresponding discriminant.
 
 --    Discriminant_Checking_Func (Node20)
---       Present in components. Points to the defining identifier of the
+--       Defined in components. Points to the defining identifier of the
 --       function built by the expander returns a Boolean indicating whether
 --       the given record component exists for the current discriminant
 --       values.
 
 --    Discriminant_Constraint (Elist21)
---       Present in entities whose Has_Discriminants flag is set (concurrent
+--       Defined in entities whose Has_Discriminants flag is set (concurrent
 --       types, subtypes, record types and subtypes, private types and
 --       subtypes, limited private types and subtypes and incomplete types).
 --       It is an error to reference the Discriminant_Constraint field if
@@ -883,24 +883,24 @@ 
 --       Elist (ie it is initialized with a call to New_Elmt_List).
 
 --    Discriminant_Default_Value (Node20)
---       Present in discriminants. Points to the node representing the
+--       Defined in discriminants. Points to the node representing the
 --       expression for the default value of the discriminant. Set to
 --       Empty if the discriminant has no default value.
 
 --    Discriminant_Number (Uint15)
---       Present in discriminants. Gives the ranking of a discriminant in
+--       Defined in discriminants. Gives the ranking of a discriminant in
 --       the list of discriminants of the type, i.e. a sequential integer
 --       index starting at 1 and ranging up to number of discriminants.
 
 --    Dispatch_Table_Wrappers (Elist26) [implementation base type only]
---       Present in E_Record_Type and E_Record_Subtype entities. Set in library
+--       Defined in E_Record_Type and E_Record_Subtype entities. Set in library
 --       level tagged type entities if we are generating statically allocated
 --       dispatch tables. Points to the list of dispatch table wrappers
 --       associated with the tagged type. For a non-tagged record, contains
 --       No_Elist.
 
 --    DTC_Entity (Node16)
---       Present in function and procedure entities. Set to Empty unless
+--       Defined in function and procedure entities. Set to Empty unless
 --       the subprogram is dispatching in which case it references the
 --       Dispatch Table pointer Component. That is to say the component _tag
 --       for regular Ada tagged types, for CPP_Class types and their
@@ -909,26 +909,26 @@ 
 --       references the subprogram.
 
 --    DT_Entry_Count (Uint15)
---       Present in E_Component entities. Only used for component marked
+--       Defined in E_Component entities. Only used for component marked
 --       Is_Tag. Store the number of entries in the Vtable (or Dispatch Table)
 
 --    DT_Offset_To_Top_Func (Node25)
---       Present in E_Component entities. Only used for component marked
+--       Defined in E_Component entities. Only used for component marked
 --       Is_Tag. If present it stores the Offset_To_Top function used to
 --       provide this value in tagged types whose ancestor has discriminants.
 
 --    DT_Position (Uint15)
---       Present in function and procedure entities which are dispatching
+--       Defined in function and procedure entities which are dispatching
 --       (should not be referenced without first checking that flag
 --       Is_Dispatching_Operation is True). Contains the offset into
 --       the Vtable for the entry that references the subprogram.
 
 --    Ekind (Ekind)
---       Present in all entities. Contains a value of the enumeration type
+--       Defined in all entities. Contains a value of the enumeration type
 --       Entity_Kind declared in a subsequent section in this spec.
 
 --    Elaborate_Body_Desirable (Flag210)
---       Present in package entities. Set if the elaboration circuitry detects
+--       Defined in package entities. Set if the elaboration circuitry detects
 --       a case where there is a package body that modifies one or more visible
 --       entities in the package spec and there is no explicit Elaborate_Body
 --       pragma for the package. This information is passed on to the binder,
@@ -936,7 +936,7 @@ 
 --       to the spec as possible.
 
 --    Elaboration_Entity (Node13)
---       Present in generic and non-generic package and subprogram entities.
+--       Defined in generic and non-generic package and subprogram entities.
 --       This is a counter associated with the unit that is initially set to
 --       zero, is incremented when an elaboration request for the unit is
 --       made, and is decremented when a finalization request for the unit
@@ -956,7 +956,7 @@ 
 --       is elaboration code), but is simply not used for any purpose.
 
 --    Elaboration_Entity_Required (Flag174)
---       Present in generic and non-generic package and subprogram entities.
+--       Defined in generic and non-generic package and subprogram entities.
 --       Set only if Elaboration_Entity is non-Empty to indicate that the
 --       counter is required to be non-zero even if there is no other
 --       elaboration code. This occurs when the Elaboration_Entity counter
@@ -966,25 +966,25 @@ 
 --       need to set the flag.
 
 --    Enclosing_Scope (Node18)
---       Present in labels. Denotes the innermost enclosing construct that
+--       Defined in labels. Denotes the innermost enclosing construct that
 --       contains the label. Identical to the scope of the label, except for
 --       labels declared in the body of an accept statement, in which case the
 --       entry_name is the Enclosing_Scope. Used to validate goto's within
 --       accept statements.
 
 --    Entry_Accepted (Flag152)
---       Present in E_Entry and E_Entry_Family entities. Set if there is
+--       Defined in E_Entry and E_Entry_Family entities. Set if there is
 --       at least one accept for this entry in the task body. Used to
 --       generate warnings for missing accepts.
 
 --    Entry_Bodies_Array (Node15)
---       Present in protected types for which Has_Entries is true.
+--       Defined in protected types for which Has_Entries is true.
 --       This is the defining identifier for the array of entry body
 --       action procedures and barrier functions used by the runtime to
 --       execute the user code associated with each entry.
 
 --    Entry_Cancel_Parameter (Node23)
---       Present in blocks. This only applies to a block statement for
+--       Defined in blocks. This only applies to a block statement for
 --       which the Is_Asynchronous_Call_Block flag is set. It
 --       contains the defining identifier of an object that must be
 --       passed to the Cancel_Task_Entry_Call or Cancel_Protected_Entry_Call
@@ -995,17 +995,17 @@ 
 --       are declared in outer scopes to this block.
 
 --    Entry_Component (Node11)
---       Present in formal parameters (in, in out and out parameters). Used
+--       Defined in formal parameters (in, in out and out parameters). Used
 --       only for formals of entries. References the corresponding component
 --       of the entry parameter record for the entry.
 
 --    Entry_Formal (Node16)
---       Present in components of the record built to correspond to entry
+--       Defined in components of the record built to correspond to entry
 --       parameters. This field points from the component to the formal. It
 --       is the back pointer corresponding to Entry_Component.
 
 --    Entry_Index_Constant (Node18)
---       Present in an entry index parameter. This is an identifier that
+--       Defined in an entry index parameter. This is an identifier that
 --       eventually becomes the name of a constant representing the index
 --       of the entry family member whose entry body is being executed. Used
 --       to expand references to the entry index specification identifier.
@@ -1017,12 +1017,12 @@ 
 --       'COUNT when it applies to a family member.
 
 --    Contract (Node24)
---       Present in entries, and in subprogram and generic subprogram entities.
+--       Defined in entries, and in subprogram and generic subprogram entities.
 --       Points to the contract of the entity, holding both pre- and
 --       postconditions as well as test-cases.
 
 --    Entry_Parameters_Type (Node15)
---       Present in entries. Points to the access-to-record type that is
+--       Defined in entries. Points to the access-to-record type that is
 --       constructed by the expander to hold a reference to the parameter
 --       values. This reference is manipulated (as an address) by the
 --       tasking runtime. The designated record represents a packaging
@@ -1031,11 +1031,11 @@ 
 --       has no parameters.
 
 --    Enumeration_Pos (Uint11)
---       Present in enumeration literals. Contains the position number
+--       Defined in enumeration literals. Contains the position number
 --       corresponding to the value of the enumeration literal.
 
 --    Enumeration_Rep (Uint12)
---       Present in enumeration literals. Contains the representation that
+--       Defined in enumeration literals. Contains the representation that
 --       corresponds to the value of the enumeration literal. Note that
 --       this is normally the same as Enumeration_Pos except in the presence
 --       of representation clauses, where Pos will still represent the
@@ -1043,7 +1043,7 @@ 
 --       value given in the representation clause.
 
 --    Enumeration_Rep_Expr (Node22)
---       Present in enumeration literals. Points to the expression in an
+--       Defined in enumeration literals. Points to the expression in an
 --       associated enumeration rep clause that provides the representation
 --       value for this literal. Empty if no enumeration rep clause for this
 --       literal (or if rep clause does not have an entry for this literal,
@@ -1051,7 +1051,7 @@ 
 --       for the same literal.
 
 --    Enum_Pos_To_Rep (Node23)
---       Present in enumeration types (but not enumeration subtypes). Set to
+--       Defined in enumeration types (but not enumeration subtypes). Set to
 --       Empty unless the enumeration type has a non-standard representation
 --       (i.e. at least one literal has a representation value different from
 --       its pos value). In this case, Enum_Pos_To_Rep is the entity for an
@@ -1061,7 +1061,7 @@ 
 --       full range of representation values.
 
 --    Equivalent_Type (Node18)
---       Present in class wide types and subtypes, access to protected
+--       Defined in class wide types and subtypes, access to protected
 --       subprogram types, and in exception types. For a classwide type, it
 --       is always Empty. For a class wide subtype, it points to an entity
 --       created by the expander which gives Gigi an easily understandable
@@ -1075,7 +1075,7 @@ 
 --       the record that is the fat pointer representation of an RAST.
 
 --    Esize (Uint12)
---       Present in all types and subtypes, and also for components, constants,
+--       Defined in all types and subtypes, and also for components, constants,
 --       and variables, including exceptions where it refers to the static data
 --       allocated for an exception. Contains the Object_Size of the type or of
 --       the object. A value of zero indicates that the value is not yet known.
@@ -1084,14 +1084,14 @@ 
 --       value is the value from the component clause, which must be non-
 --       negative (but may be zero, which is acceptable for the case of
 --       a type with only one possible value). It is also possible for Esize
---       of a component to be set without a component clause present, which
+--       of a component to be set without a component clause defined, which
 --       means that the component size is specified, but not the position.
 --       See also RM_Size and the section on "Handling of Type'Size Values".
 --       During gigi processing, the value is back annotated for all zero
 --       values, so that after the call to gigi, the value is properly set.
 
 --    Etype (Node5)
---       Present in all entities. Represents the type of the entity, which
+--       Defined in all entities. Represents the type of the entity, which
 --       is itself another entity. For a type entity, points to the parent
 --       type for a derived type, or if the type is not derived, points to
 --       itself. For a subtype entity, Etype points to the base type. For
@@ -1103,14 +1103,14 @@ 
 --       Etype of the N_Null node is Empty.
 
 --    Exception_Code (Uint22)
---       Present in exception entities. Set to zero unless either an
+--       Defined in exception entities. Set to zero unless either an
 --       Import_Exception or Export_Exception pragma applies to the
 --       pragma and specifies a Code value. See description of these
 --       pragmas for details. Note that this field is relevant only if
 --       Is_VMS_Exception is set.
 
 --    Extra_Formal (Node15)
---       Present in formal parameters in the non-generic case. Certain
+--       Defined in formal parameters in the non-generic case. Certain
 --       parameters require extra implicit information to be passed (e.g. the
 --       flag indicating if an unconstrained variant record argument is
 --       constrained, and the accessibility level for access parameters. See
@@ -1128,19 +1128,19 @@ 
 --       or entry. Returns Empty if there are no extra formals.
 
 --    Extra_Accessibility (Node13)
---       Present in formal parameters in the non-generic case. Normally Empty,
+--       Defined in formal parameters in the non-generic case. Normally Empty,
 --       but if expansion is active, and a parameter is one for which a
 --       dynamic accessibility check is required, then an extra formal of type
 --       Natural is created (see description of field Extra_Formal), and the
 --       Extra_Accessibility field of the formal parameter points to the entity
---       for this extra formal. Also present in variables when compiling
+--       for this extra formal. Also defined in variables when compiling
 --       receiving stubs. In this case, a non Empty value means that this
 --       variable's accessibility depth has been transmitted by the caller and
 --       must be retrieved through the entity designed by this field instead of
 --       being computed.
 
 --    Extra_Accessibility_Of_Result (Node19)
---       Present in (non-generic) Function, Operator, and Subprogram_Type
+--       Defined in (non-generic) Function, Operator, and Subprogram_Type
 --       entities. Normally Empty, but if expansion is active, and a function
 --       is one for which "the accessibility level of the result ... determined
 --       by the point of call" (AI05-0234) is needed, then an extra formal of
@@ -1149,26 +1149,26 @@ 
 --       the entity for this extra formal.
 
 --    Extra_Constrained (Node23)
---       Present in formal parameters in the non-generic case. Normally Empty,
+--       Defined in formal parameters in the non-generic case. Normally Empty,
 --       but if expansion is active and a parameter is one for which a dynamic
 --       indication of its constrained status is required, then an extra formal
 --       of type Boolean is created (see description of field Extra_Formal),
 --       and the Extra_Constrained field of the formal parameter points to the
---       entity for this extra formal. Also present in variables when compiling
+--       entity for this extra formal. Also defined in variables when compiling
 --       receiving stubs. In this case, a non empty value means that this
 --       variable's constrained status has been transmitted by the caller and
 --       must be retrieved through the entity designed by this field instead of
 --       being computed.
 
 --    Finalization_Master (Node23) [root type only]
---       Present in access-to-controlled or access-to-class-wide types. The
+--       Defined in access-to-controlled or access-to-class-wide types. The
 --       field contains the entity of the finalization master which handles
 --       dynamically allocated controlled objects referenced by the access
 --       type. Empty for access-to-subprogram types. Empty for access types
 --       whose designated type does not need finalization actions.
 
 --    Finalize_Storage_Only (Flag158) [base type only]
---       Present in all types. Set on direct controlled types to which a
+--       Defined in all types. Set on direct controlled types to which a
 --       valid Finalize_Storage_Only pragma applies. This flag is also set on
 --       composite types when they have at least one controlled component and
 --       all their controlled components are Finalize_Storage_Only. It is also
@@ -1192,7 +1192,7 @@ 
 --      find the first discriminant if discriminants are present.
 
 --    First_Entity (Node17)
---       Present in all entities which act as scopes to which a list of
+--       Defined in all entities which act as scopes to which a list of
 --       associated entities is attached (blocks, class subtypes and types,
 --       entries, functions, loops, packages, procedures, protected objects,
 --       record types and subtypes, private types, task types and subtypes).
@@ -1200,7 +1200,7 @@ 
 --       as a chain pointer with Empty marking the end of the list.
 
 --    First_Exit_Statement (Node8)
---       Present in E_Loop entity. The exit statements for a loop are chained
+--       Defined in E_Loop entity. The exit statements for a loop are chained
 --       (in reverse order of appearance) using this field to point to the
 --       first entry in the chain (last exit statement in the loop). The
 --       entries are chained through the Next_Exit_Statement field of the
@@ -1220,17 +1220,17 @@ 
 --       all the extra formals (see description of Extra_Formals field).
 
 --    First_Index (Node17)
---       Present in array types and subtypes and in string types and subtypes.
+--       Defined in array types and subtypes and in string types and subtypes.
 --       By introducing implicit subtypes for the index constraints, we have
 --       the same structure for constrained and unconstrained arrays, subtype
 --       marks and discrete ranges are both represented by a subtype. This
 --       function returns the tree node corresponding to an occurrence of the
 --       first index (NOT the entity for the type). Subsequent indexes are
---       obtained using Next_Index. Note that this field is present for the
+--       obtained using Next_Index. Note that this field is defined for the
 --       case of string literal subtypes, but is always Empty.
 
 --    First_Literal (Node17)
---       Present in all enumeration types, including character and boolean
+--       Defined in all enumeration types, including character and boolean
 --       types. This field points to the first enumeration literal entity
 --       for the type (i.e. it is set to First (Literals (N)) where N is
 --       the enumeration type definition node. A special case occurs with
@@ -1240,14 +1240,14 @@ 
 --       points to the first literal of the base type in this case.
 
 --    First_Optional_Parameter (Node14)
---       Present in (non-generic) function and procedure entities. Set to a
+--       Defined in (non-generic) function and procedure entities. Set to a
 --       non-null value only if a pragma Import_Function, Import_Procedure
 --       or Import_Valued_Procedure specifies a First_Optional_Parameter
 --       argument, in which case this field points to the parameter entity
 --       corresponding to the specified parameter.
 
 --    First_Private_Entity (Node16)
---       Present in all entities containing private parts (packages, protected
+--       Defined in all entities containing private parts (packages, protected
 --       types and subtypes, task types and subtypes). The entities on the
 --       entity chain are in order of declaration, so the entries for private
 --       entities are at the end of the chain. This field points to the first
@@ -1255,7 +1255,7 @@ 
 --       declared in the private part or if there is no private part.
 
 --    First_Rep_Item (Node6)
---       Present in all entities. If non-empty, points to a linked list of
+--       Defined in all entities. If non-empty, points to a linked list of
 --       representation pragmas nodes and representation clause nodes that
 --       apply to the entity, linked using Next_Rep_Item, with Empty marking
 --       the end of the list. In the case of derived types and subtypes, the
@@ -1289,22 +1289,22 @@ 
 --
 --       Other representation items are included in the chain so that error
 --       messages can easily locate the relevant nodes for posting errors.
---       Note in particular that size clauses are present only for this
+--       Note in particular that size clauses are defined only for this
 --       purpose, and should only be accessed if Has_Size_Clause is set.
 
 --    Float_Rep (Uint10)
---       Present in floating-point entities. Contains a value of type
+--       Defined in floating-point entities. Contains a value of type
 --       Float_Rep_Kind. Together with the Digits_Value uniquely defines
 --       the floating-point representation to be used.
 
 --    Freeze_Node (Node7)
---       Present in all entities. If there is an associated freeze node for the
+--       Defined in all entities. If there is an associated freeze node for the
 --       entity, this field references this freeze node. If no freeze node is
 --       associated with the entity, then this field is Empty. See package
 --       Freeze for further details.
 
 --    From_With_Type (Flag159)
---       Present in package and type entities. Indicates that the entity
+--       Defined in package and type entities. Indicates that the entity
 --       appears in a With_Type clause in the context of some other unit,
 --       either as the prefix (which must be a package), or as a type name.
 --       The package can only be used to retrieve such a type, and the type
@@ -1318,7 +1318,7 @@ 
 --       GNAT with_type clause???
 
 --    Full_View (Node11)
---       Present in all type and subtype entities and in deferred constants.
+--       Defined in all type and subtype entities and in deferred constants.
 --       References the entity for the corresponding full type declaration.
 --       For all types other than private and incomplete types, this field
 --       always contains Empty. If an incomplete type E1 is completed by a
@@ -1327,27 +1327,27 @@ 
 --       Underlying_Type.
 
 --    Generic_Homonym (Node11)
---       Present in generic packages. The generic homonym is the entity of
+--       Defined in generic packages. The generic homonym is the entity of
 --       a renaming declaration inserted in every generic unit. It is used
 --       to resolve the name of a local entity that is given by a qualified
 --       name, when the generic entity itself is hidden by a local name.
 
 --    Generic_Renamings (Elist23)
---       Present in package and subprogram instances. Holds mapping that
+--       Defined in package and subprogram instances. Holds mapping that
 --       associates generic parameters with the corresponding instances, in
 --       those cases where the instance is an entity.
 
 --    Handler_Records (List10)
---       Present in subprogram and package entities. Points to a list of
+--       Defined in subprogram and package entities. Points to a list of
 --       identifiers referencing the handler record entities for the
 --       corresponding unit.
 
 --    Has_Aliased_Components (Flag135) [implementation base type only]
---       Present in array type entities. Indicates that the component type
+--       Defined in array type entities. Indicates that the component type
 --       of the array is aliased.
 
 --    Has_Alignment_Clause (Flag46)
---       Present in all type entities and objects. Indicates if an alignment
+--       Defined in all type entities and objects. Indicates if an alignment
 --       clause has been given for the entity. If set, then Alignment_Clause
 --       returns the N_Attribute_Definition node for the alignment attribute
 --       definition clause. Note that it is possible for this flag to be False
@@ -1355,20 +1355,20 @@ 
 --       of derived type declarations).
 
 --    Has_All_Calls_Remote (Flag79)
---       Present in all library unit entities. Set true if the library unit
+--       Defined in all library unit entities. Set true if the library unit
 --       has an All_Calls_Remote pragma. Note that such entities must also
 --       be RCI entities, so the flag Is_Remote_Call_Interface will always
 --       be set if this flag is set.
 
 --    Has_Anonymous_Master (Flag253)
---       Present in units (top-level functions and procedures, library-level
+--       Defined in units (top-level functions and procedures, library-level
 --       packages). Set to True if the associated unit contains a heterogeneous
 --       finalization master. The master's name is of the form <unit>AM and it
 --       services anonymous access-to-controlled types with an undetermined
 --       lifetime.
 
 --    Has_Atomic_Components (Flag86) [implementation base type only]
---       Present in all types and objects. Set only for an array type or
+--       Defined in all types and objects. Set only for an array type or
 --       an array object if a valid pragma Atomic_Components applies to the
 --       type or object. Note that in the case of an object, this flag is
 --       only set on the object if there was an explicit pragma for the
@@ -1384,7 +1384,7 @@ 
 --       Attach_Handler pragma in the corresponding specification.
 
 --    Has_Biased_Representation (Flag139)
---       Present in discrete types (where it applies to the type'size value),
+--       Defined in discrete types (where it applies to the type'size value),
 --       and to objects (both stand-alone and components), where it applies to
 --       the size of the object from a size or record component clause. In
 --       all cases it indicates that the size in question is smaller than
@@ -1400,27 +1400,27 @@ 
 --       the subtype is still an unbiased type.
 
 --    Has_Completion (Flag26)
---       Present in all entities that require a completion (functions,
+--       Defined in all entities that require a completion (functions,
 --       procedures, private types, limited private types, incomplete types,
 --       constants and packages that require a body). The flag is set if the
 --       completion has been encountered and analyzed.
 
 --    Has_Completion_In_Body (Flag71)
---       Present in all entities for types and subtypes. Set only in "Taft
+--       Defined in all entities for types and subtypes. Set only in "Taft
 --       amendment types" (incomplete types whose full declaration appears in
 --       the package body).
 
 --    Has_Complex_Representation (Flag140) [implementation base type only]
---       Present in all type entities. Set only for a record base type to
+--       Defined in all type entities. Set only for a record base type to
 --       which a valid pragma Complex_Representation applies.
 
 --    Has_Component_Size_Clause (Flag68) [implementation base type only]
---       Present in all type entities. Set if a component size clause is
---       present for the given type. Note that this flag can be False even
+--       Defined in all type entities. Set if a component size clause is
+--       Defined for the given type. Note that this flag can be False even
 --       if Component_Size is non-zero (happens in the case of derived types).
 
 --    Has_Constrained_Partial_View (Flag187)
---       Present in private type and their completions, when the private
+--       Defined in private type and their completions, when the private
 --       type has no discriminants and the full view has discriminants with
 --       defaults. In Ada 2005 heap-allocated objects of such types are not
 --       constrained, and can change their discriminants with full assignment.
@@ -1431,50 +1431,51 @@ 
 --       [when in a generic body].
 
 --    Has_Contiguous_Rep (Flag181)
---       Present in enumeration types. True if the type as a representation
+--       Defined in enumeration types. True if the type as a representation
 --       clause whose entries are successive integers.
 
 --    Has_Controlling_Result (Flag98)
---       Present in E_Function entities. True if the function is a primitive
+--       Defined in E_Function entities. True if the function is a primitive
 --       function of a tagged type which can dispatch on result.
 
 --    Has_Controlled_Component (Flag43) [base type only]
---       Present in all type and subtype entities. Set only for composite type
+--       Defined in all type and subtype entities. Set only for composite type
 --       entities which contain a component that either is a controlled type,
 --       or itself contains controlled component (i.e. either Is_Controlled or
 --       Has_Controlled_Component is set for at least one component).
 
 --    Has_Convention_Pragma (Flag119)
---       Present in all entities. Set true for an entity for which a valid
+--       Defined in all entities. Set true for an entity for which a valid
 --       Convention, Import, or Export pragma has been given. Used to prevent
 --       more than one such pragma appearing for a given entity (RM B.1(45)).
 
---    Has_Delayed_Aspects (Flag200) Present in all entities. Set true if the
---       Rep_Item chain for the entity has one or more N_Aspect_Definition
---       nodes chained which are not to be evaluated till the freeze point.
---       The aspect definition expression clause has been preanalyzed to get
---       visibility at the point of use, but no other action has been taken.
+--    Has_Delayed_Aspects (Flag200)
+--      Defined in all entities. Set true if the Rep_Item chain for the entity
+--      has one or more N_Aspect_Definition nodes chained which are not to be
+--      evaluated till the freeze point. The aspect definition expression
+--      clause has been preanalyzed to get visibility at the point of use,
+--      but no other action has been taken.
 
 --    Has_Delayed_Freeze (Flag18)
---       Present in all entities. Set to indicate that an explicit freeze
+--       Defined in all entities. Set to indicate that an explicit freeze
 --       node must be generated for the entity at its freezing point. See
 --       separate section ("Delayed Freezing and Elaboration") for details.
 
 --    Has_Default_Aspect (Flag39) [base type only]
---       Present in entities for types and subtypes, set for scalar types with
+--       Defined in entities for types and subtypes, set for scalar types with
 --       a Default_Value aspect and array types with a Default_Component_Value
 --       apsect. If this flag is set, then a corresponding aspect specification
 --       node will be present on the rep item chain for the entity.
 
 --    Has_Discriminants (Flag5)
---       Present in all types and subtypes. For types that are allowed to have
+--       Defined in all types and subtypes. For types that are allowed to have
 --       discriminants (record types and subtypes, task types and subtypes,
 --       protected types and subtypes, private types, limited private types,
 --       and incomplete types), indicates if the corresponding type or subtype
 --       has a known discriminant part. Always false for all other types.
 
 --    Has_Dispatch_Table (Flag220)
---       Present in E_Record_Types that are tagged. Set to indicate that the
+--       Defined in E_Record_Types that are tagged. Set to indicate that the
 --       corresponding dispatch table is already built. This flag is used to
 --       avoid duplicate construction of library level dispatch tables (because
 --       the declaration of library level objects cause premature construction
@@ -1486,19 +1487,19 @@ 
 --       within the task or protected definition for the type.
 
 --    Has_Enumeration_Rep_Clause (Flag66)
---       Present in enumeration types. Set if an enumeration representation
+--       Defined in enumeration types. Set if an enumeration representation
 --       clause has been given for this enumeration type. Used to prevent more
 --       than one enumeration representation clause for a given type. Note
 --       that this does not imply a representation with holes, since the rep
 --       clause may merely confirm the default 0..N representation.
 
 --    Has_External_Tag_Rep_Clause (Flag110)
---       Present in tagged types. Set if an external_tag rep. clause has been
+--       Defined in tagged types. Set if an external_tag rep. clause has been
 --       given for this type. Use to avoid the generation of the default
 --       external_tag.
 
 --    Has_Exit (Flag47)
---       Present in loop entities. Set if the loop contains an exit statement.
+--       Defined in loop entities. Set if the loop contains an exit statement.
 
 --    Has_Foreign_Convention (synthesized)
 --       Applies to all entities. Determines if the Convention for the
@@ -1506,7 +1507,7 @@ 
 --       Convention_Intrinsic, Convention_Entry or Convention_Protected).
 
 --    Has_Forward_Instantiation (Flag175)
---       Present in package entities. Set true for packages that contain
+--       Defined in package entities. Set true for packages that contain
 --       instantiations of local generic entities, before the corresponding
 --       generic body has been seen. If a package has a forward instantiation,
 --       we cannot inline subprograms appearing in the same package because
@@ -1514,13 +1515,13 @@ 
 --       linear elaboration of front-end inlining.
 
 --    Has_Fully_Qualified_Name (Flag173)
---       Present in all entities. Set True if the name in the Chars field has
+--       Defined in all entities. Set True if the name in the Chars field has
 --       been replaced by the fully qualified name, as used for debug output.
 --       See Exp_Dbug for a full description of the use of this flag and also
 --       the related flag Has_Qualified_Name.
 
 --    Has_Gigi_Rep_Item (Flag82)
---       Present in all entities. Set if the rep item chain (referenced by
+--       Defined in all entities. Set if the rep item chain (referenced by
 --       First_Rep_Item and linked through the Next_Rep_Item chain) contains a
 --       representation item that needs to be specially processed by Gigi, i.e.
 --       one of the following items:
@@ -1538,21 +1539,21 @@ 
 --       be present.
 
 --    Has_Homonym (Flag56)
---       Present in all entities. Set if an entity has a homonym in the same
+--       Defined in all entities. Set if an entity has a homonym in the same
 --       scope. Used by Gigi to generate unique names for such entities.
 
 --    Has_Implicit_Dereference (Flag251)
---       Present in types and discriminants. Set if the type has an aspect
+--       Defined in types and discriminants. Set if the type has an aspect
 --       Implicit_Dereference. Set also on the discriminant named in the aspect
 --       clause, to simplify type resolution.
 
 --    Has_Initial_Value (Flag219)
---       Present in entities for variables and out parameters. Set if there
+--       Defined in entities for variables and out parameters. Set if there
 --       is an explicit initial value expression in the declaration of the
 --       variable. Note that this is set only if this initial value is
 --       explicit, it is not set for the case of implicit initialization
 --       of access types or controlled types. Always set to False for out
---       parameters. Also present in entities for in and in-out parameters,
+--       parameters. Also defined in entities for in and in-out parameters,
 --       but always false in these cases.
 
 --    Has_Interrupt_Handler (synthesized)
@@ -1561,7 +1562,7 @@ 
 --       Interrupt_Handler applies.
 
 --    Has_Invariants (Flag232)
---       Present in all type entities and in subprogram entities. Set True in
+--       Defined in all type entities and in subprogram entities. Set True in
 --       private types if an Invariant or Invariant'Class aspect applies to the
 --       type, or if the type inherits one or more Invariant'Class aspects.
 --       Also set in the corresponding full type. Note: if this flag is set
@@ -1573,7 +1574,7 @@ 
 --       Subprograms_For_Type.
 
 --    Has_Inheritable_Invariants (Flag248)
---       Present in all type entities. Set True in private types from which one
+--       Defined in all type entities. Set True in private types from which one
 --       or more Invariant'Class aspects will be inherited if a another type is
 --       derived from the type (i.e. those types which have an Invariant'Class
 --       aspect, or which inherit one or more Invariant'Class aspects). Also
@@ -1582,30 +1583,30 @@ 
 --       also be set in the private type.
 
 --    Has_Machine_Radix_Clause (Flag83)
---       Present in decimal types and subtypes, set if a Machine_Radix
+--       Defined in decimal types and subtypes, set if a Machine_Radix
 --       representation clause is present. This flag is used to detect
 --       the error of multiple machine radix clauses for a single type.
 
 --    Has_Master_Entity (Flag21)
---       Present in entities that can appear in the scope stack (see spec
+--       Defined in entities that can appear in the scope stack (see spec
 --       of Sem). It is set if a task master entity (_master) has been
 --       declared and initialized in the corresponding scope.
 
 --    Has_Missing_Return (Flag142)
---       Present in functions and generic functions. Set if there is one or
+--       Defined in functions and generic functions. Set if there is one or
 --       more missing return statements in the function. This is used to
 --       control wrapping of the body in Exp_Ch6 to ensure that the program
 --       error exception is correctly raised in this case at runtime.
 
 --    Has_Nested_Block_With_Handler (Flag101)
---       Present in scope entities. Set if there is a nested block within the
+--       Defined in scope entities. Set if there is a nested block within the
 --       scope that has an exception handler and the two scopes are in the
 --       same procedure. This is used by the backend for controlling certain
 --       optimizations to ensure that they are consistent with exceptions.
 --       See documentation in Gigi for further details.
 
 --    Has_Non_Standard_Rep (Flag75) [implementation base type only]
---       Present in all type entities. Set when some representation clause
+--       Defined in all type entities. Set when some representation clause
 --       or pragma causes the representation of the item to be significantly
 --       modified. In this category are changes of small or radix for a
 --       fixed-point type, change of component size for an array, and record
@@ -1615,12 +1616,12 @@ 
 --       stored bit patterns.
 
 --    Has_Object_Size_Clause (Flag172)
---       Present in entities for types and subtypes. Set if an Object_Size
+--       Defined in entities for types and subtypes. Set if an Object_Size
 --       clause has been processed for the type Used to prevent multiple
 --       Object_Size clauses for a given entity.
 
 --    Has_Per_Object_Constraint (Flag154)
---       Present in E_Component entities, true if the subtype of the
+--       Defined in E_Component entities, true if the subtype of the
 --       component has a per object constraint. Per object constraints result
 --       from the following situations:
 --
@@ -1636,19 +1637,19 @@ 
 --          discriminant of the enclosing type.
 
 --    Has_Postconditions (Flag240)
---      Present in subprogram entities. Set if postconditions are active for
+--      Defined in subprogram entities. Set if postconditions are active for
 --      the procedure, and a _postconditions procedure has been generated.
 
 --    Has_Pragma_Controlled (Flag27) [implementation base type only]
---       Present in access type entities. It is set if a pragma Controlled
+--       Defined in access type entities. It is set if a pragma Controlled
 --       applies to the access type.
 
 --    Has_Pragma_Elaborate_Body (Flag150)
---       Present in all entities. Set in compilation unit entities if a
+--       Defined in all entities. Set in compilation unit entities if a
 --       pragma Elaborate_Body applies to the compilation unit.
 
 --    Has_Pragma_Inline (Flag157)
---       Present in all entities. Set for functions and procedures for which a
+--       Defined in all entities. Set for functions and procedures for which a
 --       pragma Inline or Inline_Always applies to the subprogram. Note that
 --       this flag can be set even if Is_Inlined is not set. This happens for
 --       pragma Inline (if Inline_Active is False). In other words, the flag
@@ -1657,50 +1658,50 @@ 
 --       whether inlining is actually active for the entity.
 
 --    Has_Pragma_Inline_Always (Flag230)
---       Present in all entities. Set for functions and procedures for which a
+--       Defined in all entities. Set for functions and procedures for which a
 --       pragma Inline_Always applies. Note that if this flag is set, the flag
 --       Has_Pragma_Inline is also set.
 
 --    Has_Pragma_Ordered (Flag198) [implementation base type only]
---       Present in entities for enumeration types. If set indicates that a
+--       Defined in entities for enumeration types. If set indicates that a
 --       valid pragma Ordered was given for the type. This flag is inherited
 --       by derived enumeration types. We don't need to distinguish the derived
 --       case since we allow multiple occurrences of this pragma anyway.
 
 --    Has_Pragma_Pack (Flag121) [implementation base type only]
---       Present in array and record type entities. If set, indicates that a
+--       Defined in array and record type entities. If set, indicates that a
 --       valid pragma Pack was given for the type. Note that this flag is not
 --       inherited by derived type. See also the Is_Packed flag.
 
 --    Has_Pragma_Pure (Flag203)
---       Present in all entities. If set, indicates that a valid pragma Pure
+--       Defined in all entities. If set, indicates that a valid pragma Pure
 --       was given for the entity. In some cases, we need to test whether
 --       Is_Pure was explicitly set using this pragma.
 
 --    Has_Pragma_Preelab_Init (Flag221)
---       Present in type and subtype entities. If set indicates that a valid
+--       Defined in type and subtype entities. If set indicates that a valid
 --       pragma Preelaborable_Initialization applies to the type.
 
 --    Has_Pragma_Pure_Function (Flag179)
---       Present in all entities. If set, indicates that a valid pragma
+--       Defined in all entities. If set, indicates that a valid pragma
 --       Pure_Function was given for the entity. In some cases, we need to
 --       know that Is_Pure was explicitly set using this pragma. We also set
 --       this flag for some internal entities that we know should be treated
 --       as pure for optimization purposes.
 
 --    Has_Pragma_Thread_Local_Storage (Flag169)
---       Present in all entities. If set, indicates that a valid pragma
+--       Defined in all entities. If set, indicates that a valid pragma
 --       Thread_Local_Storage was given for the entity.
 
 --    Has_Pragma_Unmodified (Flag233)
---       Present in all entities. Can only be set for variables (E_Variable,
+--       Defined in all entities. Can only be set for variables (E_Variable,
 --       E_Out_Parameter, E_In_Out_Parameter). Set if a valid pragma Unmodified
 --       applies to the variable, indicating that no warning should be given
 --       if the entity is never modified. Note that clients should generally
 --       not test this flag directly, but instead use function Has_Unmodified.
 
 --    Has_Pragma_Unreferenced (Flag180)
---       Present in all entities. Set if a valid pragma Unreferenced applies
+--       Defined in all entities. Set if a valid pragma Unreferenced applies
 --       to the entity, indicating that no warning should be given if the
 --       entity has no references, but a warning should be given if it is
 --       in fact referenced. For private types, this flag is set in both the
@@ -1709,21 +1710,21 @@ 
 --       use function Has_Unreferenced.
 
 --    Has_Pragma_Unreferenced_Objects (Flag212)
---       Present in type and subtype entities. Set if a valid pragma
+--       Defined in type and subtype entities. Set if a valid pragma
 --       Unreferenced_Objects applies to the type, indicating that no warning
 --       should be given for objects of such a type for being unreferenced
 --       (but unlike the case with pragma Unreferenced, it is ok to reference
 --       such an object and no warning is generated.
 
 --    Has_Predicates (Flag250)
---       Present in all entities. Set in type and subtype entities if a pragma
+--       Defined in all entities. Set in type and subtype entities if a pragma
 --       Predicate or Predicate aspect applies to the type, or if it inherits a
 --       Predicate aspect from its parent or progenitor types. Also set in the
 --       predicate function entity, to distinguish it among entries in the
 --       Subprograms_For_Type.
 
 --    Has_Primitive_Operations (Flag120) [base type only]
---       Present in all type entities. Set if at least one primitive operation
+--       Defined in all type entities. Set if at least one primitive operation
 --       is defined for the type.
 
 --    Has_Private_Ancestor (Flag151)
@@ -1735,14 +1736,14 @@ 
 --       This is part of AI05-0115.
 
 --    Has_Private_Declaration (Flag155)
---       Present in all entities. Returns True if it is the defining entity
+--       Defined in all entities. Returns True if it is the defining entity
 --       of a private type declaration or its corresponding full declaration.
 --       This flag is thus preserved when the full and the partial views are
 --       exchanged, to indicate if a full type declaration is a completion.
 --       Used for semantic checks in E.4(18) and elsewhere.
 
 --    Has_Qualified_Name (Flag161)
---       Present in all entities. Set True if the name in the Chars field
+--       Defined in all entities. Set True if the name in the Chars field
 --       has been replaced by its qualified name, as used for debug output.
 --       See Exp_Dbug for a full description of qualification requirements.
 --       For some entities, the name is the fully qualified name, but there
@@ -1752,37 +1753,37 @@ 
 --       indeed include the fully qualified name.
 
 --    Has_RACW (Flag214)
---      Present in package spec entities. Set if the spec contains the
---      declaration of a remote access-to-classwide type.
+--       Defined in package spec entities. Set if the spec contains the
+--       declaration of a remote access-to-classwide type.
 
 --    Has_Record_Rep_Clause (Flag65) [implementation base type only]
---       Present in record types. Set if a record representation clause has
+--       Defined in record types. Set if a record representation clause has
 --       been given for this record type. Used to prevent more than one such
 --       clause for a given record type. Note that this is initially cleared
 --       for a derived type, even though the representation is inherited. See
 --       also the flag Has_Specified_Layout.
 
 --    Has_Recursive_Call (Flag143)
---       Present in procedures. Set if a direct parameterless recursive call
+--       Defined in procedures. Set if a direct parameterless recursive call
 --       is detected while analyzing the body. Used to activate some error
 --       checks for infinite recursion.
 
 --    Has_Size_Clause (Flag29)
---       Present in entities for types and objects. Set if a size clause is
---       present for the entity. Used to prevent multiple Size clauses for a
+--       Defined in entities for types and objects. Set if a size clause is
+--       Defined for the entity. Used to prevent multiple Size clauses for a
 --       given entity. Note that it is always initially cleared for a derived
 --       type, even though the Size for such a type is inherited from a Size
 --       clause given for the parent type.
 
 --    Has_Small_Clause (Flag67)
---       Present in ordinary fixed point types (but not subtypes). Indicates
+--       Defined in ordinary fixed point types (but not subtypes). Indicates
 --       that a small clause has been given for the entity. Used to prevent
 --       multiple Small clauses for a given entity. Note that it is always
 --       initially cleared for a derived type, even though the Small for such
 --       a type is inherited from a Small clause given for the parent type.
 
 --    Has_Specified_Layout (Flag100) [implementation base type only]
---       Present in all type entities. Set for a record type or subtype if
+--       Defined in all type entities. Set for a record type or subtype if
 --       the record layout has been specified by a record representation
 --       clause. Note that this differs from the flag Has_Record_Rep_Clause
 --       in that it is inherited by a derived type. Has_Record_Rep_Clause is
@@ -1794,35 +1795,35 @@ 
 --    Has_Specified_Stream_Output (Flag191)
 --    Has_Specified_Stream_Read (Flag192)
 --    Has_Specified_Stream_Write (Flag193)
---       Present in all type and subtype entities. Set for a given view if the
+--       Defined in all type and subtype entities. Set for a given view if the
 --       corresponding stream-oriented attribute has been defined by an
 --       attribute definition clause. When such a clause occurs, a TSS is set
 --       on the underlying full view; the flags are used to track visibility of
 --       the attribute definition clause for partial or incomplete views.
 
 --    Has_Static_Discriminants (Flag211)
---       Present in record subtypes constrained by discriminant values. Set if
+--       Defined in record subtypes constrained by discriminant values. Set if
 --       all the discriminant values have static values, meaning that in the
 --       case of a variant record, the component list can be trimmed down to
 --       include only the components corresponding to these discriminants.
 
 --    Has_Storage_Size_Clause (Flag23) [implementation base type only]
---       Present in task types and access types. It is set if a Storage_Size
+--       Defined in task types and access types. It is set if a Storage_Size
 --       clause is present for the type. Used to prevent multiple clauses for
 --       one type. Note that this flag is initially cleared for a derived type
 --       even though the Storage_Size for such a type is inherited from a
 --       Storage_Size clause given for the parent type. Note that in the case
---       of access types, this flag is present only in the root type, since a
+--       of access types, this flag is defined only in the root type, since a
 --       storage size clause cannot be given to a derived type.
 
 --    Has_Stream_Size_Clause (Flag184)
---       Present in all entities. It is set for types which have a Stream_Size
+--       Defined in all entities. It is set for types which have a Stream_Size
 --       clause attribute. Used to prevent multiple Stream_Size clauses for a
 --       given entity, and also whether it is necessary to check for a stream
 --       size clause.
 
 --    Has_Task (Flag30) [base type only]
---       Present in all type entities. Set on task types themselves, and also
+--       Defined in all type entities. Set on task types themselves, and also
 --       (recursively) on any composite type which has a component for which
 --       Has_Task is set. The meaning is that an allocator or declaration of
 --       such an object must create the required tasks. Note: the flag is not
@@ -1833,7 +1834,7 @@ 
 --       referencing a dispatch table whose contents are pointers to thunks.
 
 --    Has_Unchecked_Union (Flag123) [base type only]
---       Present in all type entities. Set on unchecked unions themselves
+--       Defined in all type entities. Set on unchecked unions themselves
 --       and (recursively) on any composite type which has a component for
 --       which Has_Unchecked_Union is set. The meaning is that a comparison
 --       operation for the type is not permitted. Note that the flag is not
@@ -1841,7 +1842,7 @@ 
 --       the flag Has_Unchecked_Union set.
 
 --    Has_Unknown_Discriminants (Flag72)
---       Present in all entities. Set for types with unknown discriminants.
+--       Defined in all entities. Set for types with unknown discriminants.
 --       Types can have unknown discriminants either from their declaration or
 --       through type derivation. The use of this flag exactly meets the spec
 --       in RM 3.7(26). Note that all class-wide types are considered to have
@@ -1854,14 +1855,14 @@ 
 --       inherited in certain contexts.
 
 --    Has_Up_Level_Access (Flag215)
---      Present in E_Variable and E_Constant entities. Set if the entity
---      is a local variable declared in a subprogram p and is accessed in
---      a subprogram nested inside p. Currently this flag is only set when
---      VM_Target /= No_VM, for efficiency, since only the .NET back-end
---      makes use of it to generate proper code for up-level references.
+--       Defined in E_Variable and E_Constant entities. Set if the entity
+--       is a local variable declared in a subprogram p and is accessed in
+--       a subprogram nested inside p. Currently this flag is only set when
+--       VM_Target /= No_VM, for efficiency, since only the .NET back-end
+--       makes use of it to generate proper code for up-level references.
 
 --    Has_Volatile_Components (Flag87) [implementation base type only]
---       Present in all types and objects. Set only for an array type or array
+--       Defined in all types and objects. Set only for an array type or array
 --       object if a valid pragma Volatile_Components or a valid pragma
 --       Atomic_Components applies to the type or object. Note that in the case
 --       of an object, this flag is only set on the object if there was an
@@ -1872,7 +1873,7 @@ 
 --       subtype in the usual manner.
 
 --    Has_Xref_Entry (Flag182)
---       Present in all entities. Set if an entity has an entry in the Xref
+--       Defined in all entities. Set if an entity has an entry in the Xref
 --       information generated in ali files. This is true for all source
 --       entities in the extended main source file. It is also true of entities
 --       in other packages that are referenced directly or indirectly from the
@@ -1881,7 +1882,7 @@ 
 --       further details).
 
 --    Hiding_Loop_Variable (Node8)
---       Present in variables. Set only if a variable of a discrete type is
+--       Defined in variables. Set only if a variable of a discrete type is
 --       hidden by a loop variable in the same local scope, in which case
 --       the Hiding_Loop_Variable field of the hidden variable points to
 --       the E_Loop_Parameter entity doing the hiding. Used in processing
@@ -1889,7 +1890,7 @@ 
 --       or is referenced without being set.
 
 --    Homonym (Node4)
---       Present in all entities. Link for list of entities that have the
+--       Defined in all entities. Link for list of entities that have the
 --       same source name and that are declared in the same or enclosing
 --       scopes. Homonyms in the same scope are overloaded. Used for name
 --       resolution and for the generation of debugging information.
@@ -1902,37 +1903,37 @@ 
 --       returns the entity unchanged.
 
 --    Interface_Alias (Node25)
---       Present in subprograms that cover a primitive operation of an abstract
+--       Defined in subprograms that cover a primitive operation of an abstract
 --       interface type. Can be set only if the Is_Hidden flag is also set,
 --       since such entities are always hidden. Points to its associated
 --       interface subprogram. It is used to register the subprogram in
 --       secondary dispatch table of the interface (Ada 2005: AI-251).
 
 --    Interfaces (Elist25)
---       Present in record types and subtypes. List of abstract interfaces
+--       Defined in record types and subtypes. List of abstract interfaces
 --       implemented by a tagged type that are not already implemented by the
 --       ancestors (Ada 2005: AI-251).
 
 --    In_Package_Body (Flag48)
---       Present in package entities. Set on the entity that denotes the
+--       Defined in package entities. Set on the entity that denotes the
 --       package (the defining occurrence of the package declaration) while
 --       analyzing and expanding the package body. Reset on completion of
 --       analysis/expansion.
 
 --    In_Private_Part (Flag45)
---       Present in all entities. Can be set only in package entities and
+--       Defined in all entities. Can be set only in package entities and
 --       objects. For package entities, this flag is set to indicate that the
 --       private part of the package is being analyzed. The flag is reset at
 --       the end of the package declaration. For objects it indicates that the
 --       declaration of the object occurs in the private part of a package.
 
 --    Inner_Instances (Elist23)
---       Present in generic units. Contains element list of units that are
+--       Defined in generic units. Contains element list of units that are
 --       instantiated within the given generic. Used to diagnose circular
 --       instantiations.
 
 --    Interface_Name (Node21)
---       Present in constants, variables, exceptions, functions, procedures,
+--       Defined in constants, variables, exceptions, functions, procedures,
 --       packages, components (JGNAT only), discriminants (JGNAT only), and
 --       access to subprograms (JGNAT only). Set to Empty unless an export,
 --       import, or interface name pragma has explicitly specified an external
@@ -1956,34 +1957,34 @@ 
 --       because Java names are case sensitive).
 
 --    Invariant_Procedure (synthesized)
---       Present in types and subtypes. Set for private types if one or more
+--       Defined in types and subtypes. Set for private types if one or more
 --       Invariant, or Invariant'Class, or inherited Invariant'Class aspects
 --       apply to the type. Points to the entity for a procedure which checks
 --       the invariant. This invariant procedure takes a single argument of the
 --       given type, and returns if the invariant holds, or raises exception
 --       Assertion_Error with an appropriate message if it does not hold. This
---       attribute is present but always empty for private subtypes. This
+--       attribute is defined but always empty for private subtypes. This
 --       attribute is also set for the corresponding full type.
 --
 --       Note: the reason this is marked as a synthesized attribute is that the
 --       way this is stored is as an element of the Subprograms_For_Type field.
 
 --    In_Use (Flag8)
---       Present in packages and types. Set when analyzing a use clause for
+--       Defined in packages and types. Set when analyzing a use clause for
 --       the corresponding entity. Reset at end of corresponding declarative
 --       part. The flag on a type is also used to determine the visibility of
 --       the primitive operators of the type.
 
 --    Is_Abstract_Subprogram (Flag19)
---       Present in all subprograms and entries. Set for abstract subprograms.
+--       Defined in all subprograms and entries. Set for abstract subprograms.
 --       Always False for enumeration literals and entries. See also
 --       Requires_Overriding.
 
 --    Is_Abstract_Type (Flag146)
---       Present in all types. Set for abstract types.
+--       Defined in all types. Set for abstract types.
 
 --    Is_Access_Constant (Flag69)
---       Present in access types and subtypes. Indicates that the keyword
+--       Defined in access types and subtypes. Indicates that the keyword
 --       constant was present in the access type definition.
 
 --    Is_Access_Protected_Subprogram_Type (synthesized)
@@ -1994,33 +1995,33 @@ 
 --       Applies to all entities, true for access types and subtypes
 
 --    Is_Ada_2005_Only (Flag185)
---       Present in all entities, true if a valid pragma Ada_05 or Ada_2005
+--       Defined in all entities, true if a valid pragma Ada_05 or Ada_2005
 --       applies to the entity which specifically names the entity, indicating
 --       that the entity is Ada 2005 only. Note that this flag is not set if
 --       the entity is part of a unit compiled with the normal no-argument form
 --       of pragma Ada_05 or Ada_2005.
 
 --    Is_Ada_2012_Only (Flag199)
---       Present in all entities, true if a valid pragma Ada_12 or Ada_2012
+--       Defined in all entities, true if a valid pragma Ada_12 or Ada_2012
 --       applies to the entity which specifically names the entity, indicating
 --       that the entity is Ada 2012 only. Note that this flag is not set if
 --       the entity is part of a unit compiled with the normal no-argument form
 --       of pragma Ada_12 or Ada_2012.
 
 --    Is_Aliased (Flag15)
---       Present in all entities. Set for objects and types whose declarations
+--       Defined in all entities. Set for objects and types whose declarations
 --       carry the keyword aliased, and on record components that have the
 --       keyword. For Ada 2012, also applies to formal parameters.
 
 --    Is_AST_Entry (Flag132)
---       Present in entry entities. Set if a valid pragma AST_Entry applies
+--       Defined in entry entities. Set if a valid pragma AST_Entry applies
 --       to the entry. This flag can only be set in OpenVMS versions of GNAT.
 --       Note: we also allow the flag to appear in entry families, but given
 --       the current implementation of the pragma AST_Entry, this flag will
 --       always be False in entry families.
 
 --    Is_Atomic (Flag85)
---       Present in all type entities, and also in constants, components and
+--       Defined in all type entities, and also in constants, components and
 --       variables. Set if a pragma Atomic or Shared applies to the entity.
 --       In the case of private and incomplete types, this flag is set in
 --       both the partial view and the full view.
@@ -2029,14 +2030,14 @@ 
 --       Applies to all entities, true for array types and subtypes
 
 --    Is_Asynchronous (Flag81)
---       Present in all type entities and in procedure entities. Set
+--       Defined in all type entities and in procedure entities. Set
 --       if a pragma Asynchronous applies to the entity.
 
 --    Is_Base_Type (synthesized)
 --       Applies to type and subtype entities. True if entity is a base type
 
 --    Is_Bit_Packed_Array (Flag122) [implementation base type only]
---       Present in all entities. This flag is set for a packed array type that
+--       Defined in all entities. This flag is set for a packed array type that
 --       is bit packed (i.e. the component size is known by the front end and
 --       is in the range 1-7, 9-15, 17-31, or 33-63). Is_Packed is always set
 --       if Is_Bit_Packed_Array is set, but it is possible for Is_Packed to be
@@ -2049,34 +2050,34 @@ 
 --       i.e. Standard.Boolean and all types ultimately derived from it.
 
 --    Is_Called (Flag102)
---       Present in subprograms. Returns true if the subprogram is called
+--       Defined in subprograms. Returns true if the subprogram is called
 --       in the unit being compiled or in a unit in the context. Used for
 --       inlining.
 
 --    Is_Character_Type (Flag63)
---       Present in all entities. Set for character types and subtypes,
+--       Defined in all entities. Set for character types and subtypes,
 --       i.e. enumeration types that have at least one character literal.
 
 --    Is_Child_Unit (Flag73)
---       Present in all entities. Set only for defining entities of program
+--       Defined in all entities. Set only for defining entities of program
 --       units that are child units (but False for subunits).
 
 --    Is_Class_Wide_Type (synthesized)
 --       Applies to all entities, true for class wide types and subtypes
 
 --    Is_Class_Wide_Equivalent_Type (Flag35)
---       Present in record types and subtypes. Set to True, if the type acts
+--       Defined in record types and subtypes. Set to True, if the type acts
 --       as a class-wide equivalent type, i.e. the Equivalent_Type field of
 --       some class-wide subtype entity references this record type.
 
 --    Is_Compilation_Unit (Flag149)
---       Present in all entities. Set if the entity is a package or subprogram
+--       Defined in all entities. Set if the entity is a package or subprogram
 --       entity for a compilation unit other than a subunit (since we treat
 --       subunits as part of the same compilation operation as the ultimate
 --       parent, we do not consider them to be separate units for this flag).
 
 --    Is_Completely_Hidden (Flag103)
---       Present in all entities. This flag can be set only for E_Discriminant
+--       Defined in all entities. This flag can be set only for E_Discriminant
 --       entities. This flag can be set only for girder discriminants of
 --       untagged types. When set, the entity is a girder discriminant of a
 --       derived untagged type which is not directly visible in the derived
@@ -2090,7 +2091,7 @@ 
 --       not both) is true of any type.
 
 --    Is_Concurrent_Record_Type (Flag20)
---       Present in record types and subtypes. Set if the type was created
+--       Defined in record types and subtypes. Set if the type was created
 --       by the expander to represent a task or protected type. For every
 --       concurrent type, such as record type is constructed, and task and
 --       protected objects are instances of this record type at runtime
@@ -2107,37 +2108,37 @@ 
 --       E_In_Parameter entities.
 
 --    Is_Constrained (Flag12)
---       Present in types or subtypes which may have index, discriminant
+--       Defined in types or subtypes which may have index, discriminant
 --       or range constraint (i.e. array types and subtypes, record types
 --       and subtypes, string types and subtypes, and all numeric types).
 --       Set if the type or subtype is constrained.
 
 --    Is_Constr_Subt_For_U_Nominal (Flag80)
---       Present in all types and subtypes. Set true only for the constructed
+--       Defined in all types and subtypes. Set true only for the constructed
 --       subtype of an object whose nominal subtype is unconstrained. Note
 --       that the constructed subtype itself will be constrained.
 
 --    Is_Constr_Subt_For_UN_Aliased (Flag141)
---       Present in all types and subtypes. This flag can be set only if
+--       Defined in all types and subtypes. This flag can be set only if
 --       Is_Constr_Subt_For_U_Nominal is also set. It indicates that in
 --       addition the object concerned is aliased. This flag is used by
 --       Gigi to determine whether a template must be constructed.
 
 --    Is_Constructor (Flag76)
---       Present in function and procedure entities. Set if a pragma
+--       Defined in function and procedure entities. Set if a pragma
 --       CPP_Constructor applies to the subprogram.
 
 --    Is_Controlled (Flag42) [base type only]
---       Present in all type entities. Indicates that the type is controlled,
+--       Defined in all type entities. Indicates that the type is controlled,
 --       i.e. is either a descendant of Ada.Finalization.Controlled or of
 --       Ada.Finalization.Limited_Controlled.
 
 --    Is_Controlling_Formal (Flag97)
---       Present in all Formal_Kind entities. Marks the controlling parameters
+--       Defined in all Formal_Kind entities. Marks the controlling parameters
 --       of dispatching operations.
 
 --    Is_CPP_Class (Flag74)
---       Present in all type entities, set only for tagged types to which a
+--       Defined in all type entities, set only for tagged types to which a
 --       valid pragma Import (CPP, ...) or pragma CPP_Class has been applied.
 
 --    Is_Decimal_Fixed_Point_Type (synthesized)
@@ -2145,7 +2146,7 @@ 
 --       types and subtypes.
 
 --    Is_Descendent_Of_Address (Flag223)
---       Present in all type and subtype entities. Indicates that a type is an
+--       Defined in all type and subtype entities. Indicates that a type is an
 --       address type that is visibly a numeric type. Used for semantic checks
 --       on VMS to remove ambiguities in universal integer expressions that may
 --       have an address interpretation
@@ -2158,7 +2159,7 @@ 
 --       and all fixed-point types and subtypes.
 
 --    Is_Discrim_SO_Function (Flag176)
---       Present in all entities. Set only in E_Function entities that Layout
+--       Defined in all entities. Set only in E_Function entities that Layout
 --       creates to compute discriminant-dependent dynamic size/offset values.
 
 --    Is_Discriminal (synthesized)
@@ -2170,7 +2171,7 @@ 
 --       entity is associated with a dispatch table.
 
 --    Is_Dispatching_Operation (Flag6)
---       Present in all entities. Set true for procedures, functions,
+--       Defined in all entities. Set true for procedures, functions,
 --       generic procedures and generic functions if the corresponding
 --       operation is dispatching.
 
@@ -2185,25 +2186,25 @@ 
 --       not both) is true of any type.
 
 --    Is_Eliminated (Flag124)
---       Present in type entities, subprogram entities, and object entities.
+--       Defined in type entities, subprogram entities, and object entities.
 --       Indicates that the corresponding entity has been eliminated by use
 --       of pragma Eliminate. Also used to mark subprogram entities whose
 --       declaration and body are within unreachable code that is removed.
 
 --    Is_Enumeration_Type (synthesized)
---       Present in all entities, true for enumeration types and subtypes
+--       Defined in all entities, true for enumeration types and subtypes
 
 --    Is_Entry (synthesized)
 --       Applies to all entities, True only for entry and entry family
 --       entities and False for all other entity kinds.
 
 --    Is_Entry_Formal (Flag52)
---       Present in all entities. Set only for entry formals (which can
+--       Defined in all entities. Set only for entry formals (which can
 --       only be in, in-out or out parameters). This flag is used to speed
 --       up the test for the need to replace references in Exp_Ch2.
 
 --    Is_Exported (Flag99)
---       Present in all entities. Set if the entity is exported. For now we
+--       Defined in all entities. Set if the entity is exported. For now we
 --       only allow the export of constants, exceptions, functions, procedures
 --       and variables, but that may well change later on. Exceptions can only
 --       be exported in the OpenVMS and Java VM implementations of GNAT.
@@ -2213,7 +2214,7 @@ 
 --       code to process local or library level objects.
 
 --    Is_First_Subtype (Flag70)
---       Present in all entities. True for first subtypes (RM 3.2.1(6)),
+--       Defined in all entities. True for first subtypes (RM 3.2.1(6)),
 --       i.e. the entity in the type declaration that introduced the type.
 --       This may be the base type itself (e.g. for record declarations and
 --       enumeration type declarations), or it may be the first subtype of
@@ -2234,25 +2235,25 @@ 
 --       Applies to all entities, true for generic IN and IN OUT parameters
 
 --    Is_Formal_Subprogram (Flag111)
---       Present in all entities. Set for generic formal subprograms.
+--       Defined in all entities. Set for generic formal subprograms.
 
 --    Is_For_Access_Subtype (Flag118)
---       Present in E_Private_Subtype and E_Record_Subtype entities. Means the
+--       Defined in E_Private_Subtype and E_Record_Subtype entities. Means the
 --       sole purpose of the type is to be designated by an Access_Subtype and
 --       hence should not be expanded into components because the type may not
 --       have been found or frozen yet.
 
 --    Is_Frozen (Flag4)
---       Present in all type and subtype entities. Set if type or subtype has
+--       Defined in all type and subtype entities. Set if type or subtype has
 --       been frozen.
 
 --    Is_Generic_Actual_Type (Flag94)
---       Present in all type and subtype entities. Set in the subtype
+--       Defined in all type and subtype entities. Set in the subtype
 --       declaration that renames the generic formal as a subtype of the
 --       actual. Guarantees that the subtype is not static within the instance.
 
 --    Is_Generic_Instance (Flag130)
---       Present in all entities. Set to indicate that the entity is an
+--       Defined in all entities. Set to indicate that the entity is an
 --       instance of a generic unit, or a formal package (which is an instance
 --       of the template).
 
@@ -2261,7 +2262,7 @@ 
 --       (generic function, generic subprogram), False for all other entities.
 
 --    Is_Generic_Type (Flag13)
---       Present in all entities. Set for types which are generic formal types.
+--       Defined in all entities. Set for types which are generic formal types.
 --       Such types have an Ekind that corresponds to their classification, so
 --       the Ekind cannot be used to identify generic formal types.
 
@@ -2271,7 +2272,7 @@ 
 --       other entities.
 
 --    Is_Hidden (Flag57)
---       Present in all entities. Set true for all entities declared in the
+--       Defined in all entities. Set true for all entities declared in the
 --       private part or body of a package. Also marks generic formals of a
 --       formal package declared without a box. For library level entities,
 --       this flag is set if the entity is not publicly visible. This flag
@@ -2281,22 +2282,22 @@ 
 --       Private_Declaration in sem_ch7).
 
 --    Is_Hidden_Open_Scope (Flag171)
---       Present in all entities. Set true for a scope that contains the
+--       Defined in all entities. Set true for a scope that contains the
 --       instantiation of a child unit, and whose entities are not visible
 --       during analysis of the instance.
 
 --    Is_Immediately_Visible (Flag7)
---       Present in all entities. Set if entity is immediately visible, i.e.
+--       Defined in all entities. Set if entity is immediately visible, i.e.
 --       is defined in some currently open scope (RM 8.3(4)).
 
 --    Is_Implementation_Defined (Flag254)
---       Present in all entities. Set if a pragma Implementation_Defined is
+--       Defined in all entities. Set if a pragma Implementation_Defined is
 --       applied to the pragma. Used to mark all implementation defined
 --       identifiers in standard library packages, and to implement the
 --       restriction No_Implementation_Identifiers.
 
 --    Is_Imported (Flag24)
---       Present in all entities. Set if the entity is imported. For now we
+--       Defined in all entities. Set if the entity is imported. For now we
 --       only allow the import of exceptions, functions, procedures, packages.
 --       and variables. Exceptions can only be imported in the OpenVMS and
 --       Java VM implementations of GNAT. Packages and types can only be
@@ -2309,7 +2310,7 @@ 
 --       Applies to all entities, true for incomplete types and subtypes
 
 --    Is_Inlined (Flag11)
---       Present in all entities. Set for functions and procedures which are
+--       Defined in all entities. Set for functions and procedures which are
 --       to be inlined. For subprograms created during expansion, this flag
 --       may be set directly by the expander to request inlining. Also set
 --       for packages that contain inlined subprograms, whose bodies must be
@@ -2318,7 +2319,7 @@ 
 --       of inlined subprograms. See also Has_Pragma_Inline.
 
 --    Is_Instantiated (Flag126)
---       Present in generic packages and generic subprograms. Set if the unit
+--       Defined in generic packages and generic subprograms. Set if the unit
 --       is instantiated from somewhere in the extended main source unit. This
 --       flag is used to control warnings about the unit being uninstantiated.
 --       Also set in a package that is used as an actual for a generic package
@@ -2329,7 +2330,7 @@ 
 --       Applies to all entities, true for integer types and subtypes
 
 --    Is_Interface (Flag186)
---       Present in record types and subtypes. Set to indicate that the current
+--       Defined in record types and subtypes. Set to indicate that the current
 --       entity corresponds with an abstract interface. Because abstract
 --       interfaces are conceptually a special kind of abstract tagged types
 --       we represent them by means of tagged record types and subtypes
@@ -2338,7 +2339,7 @@ 
 --       (Ada 2005: AI-251).
 
 --    Is_Internal (Flag17)
---       Present in all entities. Set to indicate an entity created during
+--       Defined in all entities. Set to indicate an entity created during
 --       semantic processing (e.g. an implicit type, or a temporary). The
 --       current uses of this flag are:
 --
@@ -2362,12 +2363,12 @@ 
 --         also the attribute Interface_Alias.
 
 --    Is_Interrupt_Handler (Flag89)
---       Present in procedures. Set if a pragma Interrupt_Handler applies
+--       Defined in procedures. Set if a pragma Interrupt_Handler applies
 --       to the procedure. The procedure must be parameterless, and on all
 --       targets except AAMP it must be a protected procedure.
 
 --    Is_Intrinsic_Subprogram (Flag64)
---       Present in functions and procedures. It is set if a valid pragma
+--       Defined in functions and procedures. It is set if a valid pragma
 --       Interface or Import is present for this subprogram specifying pragma
 --       Intrinsic. Valid means that the name and profile of the subprogram
 --       match the requirements of one of the recognized intrinsic subprograms
@@ -2377,7 +2378,7 @@ 
 --       to intrinsic, which causes intrinsic code to be generated.
 
 --    Is_Itype (Flag91)
---       Present in all entities. Set to indicate that a type is an Itype,
+--       Defined in all entities. Set to indicate that a type is an Itype,
 --       which means that the declaration for the type does not appear
 --       explicitly in the tree. Instead gigi will elaborate the type when it
 --       is first used. Has_Delayed_Freeze can be set for Itypes, and the
@@ -2387,7 +2388,7 @@ 
 --       to be defined) must be in the same scope as the type.
 
 --    Is_Known_Non_Null (Flag37)
---       Present in all entities. Relevant (and can be set True) only for
+--       Defined in all entities. Relevant (and can be set True) only for
 --       objects of an access type. It is set if the object is currently
 --       known to have a non-null value (meaning that no access checks
 --       are needed). The indication can for example come from assignment
@@ -2408,7 +2409,7 @@ 
 --       Thus this flag has no meaning to the back end.
 
 --    Is_Known_Null (Flag204)
---       Present in all entities. Relevant (and can be set True) only for
+--       Defined in all entities. Relevant (and can be set True) only for
 --       objects of an access type. It is set if the object is currently known
 --       to have a null value (meaning that a dereference will surely raise
 --       constraint error exception). The indication can come from an
@@ -2418,7 +2419,7 @@ 
 --       the Is_Known_Non_Null flag apply equally to the Is_Known_Null flag.
 
 --    Is_Known_Valid (Flag170)
---       Present in all entities. Relevant for types (and subtype) and
+--       Defined in all entities. Relevant for types (and subtype) and
 --       for objects (and enumeration literals) of a discrete type.
 --
 --       The purpose of this flag is to implement the requirement stated
@@ -2452,24 +2453,24 @@ 
 --       Thus this flag has no meaning to the back end.
 
 --    Is_Limited_Composite (Flag106)
---       Present in all entities. Set for composite types that have a limited
+--       Defined in all entities. Set for composite types that have a limited
 --       component. Used to enforce the rule that operations on the composite
 --       type that depend on the full view of the component do not become
 --       visible until the immediate scope of the composite type itself
 --       (RM 7.3.1 (5)).
 
 --    Is_Limited_Interface (Flag197)
---       Present in record types and subtypes. True for interface types, if
+--       Defined in record types and subtypes. True for interface types, if
 --       interface is declared limited, task, protected, or synchronized, or
 --       is derived from a limited interface.
 
 --    Is_Limited_Record (Flag25)
---       Present in all entities. Set to true for record (sub)types if the
+--       Defined in all entities. Set to true for record (sub)types if the
 --       record is declared to be limited. Note that this flag is not set
 --       simply because some components of the record are limited.
 
 --    Is_Local_Anonymous_Access (Flag194)
---       Present in access types. Set for an anonymous access type to indicate
+--       Defined in access types. Set for an anonymous access type to indicate
 --       that the type is created for a record component with an access
 --       definition, an array component, or (pre-Ada 2012) a standalone object.
 --       Such anonymous types have an accessibility level equal to that of the
@@ -2478,7 +2479,7 @@ 
 --       (as of Ada 2012) stand-alone objects.
 
 --    Is_Machine_Code_Subprogram (Flag137)
---       Present in subprogram entities. Set to indicate that the subprogram
+--       Defined in subprogram entities. Set to indicate that the subprogram
 --       is a machine code subprogram (i.e. its body includes at least one
 --       code statement). Also indicates that all necessary semantic checks
 --       as required by RM 13.8(3) have been performed.
@@ -2487,7 +2488,7 @@ 
 --       Applies to all entities. True if entity is a modular integer type
 
 --    Is_Non_Static_Subtype (Flag109)
---       Present in all type and subtype entities. It is set in some (but not
+--       Defined in all type and subtype entities. It is set in some (but not
 --       all) cases in which a subtype is known to be non-static. Before this
 --       flag was added, the computation of whether a subtype was static was
 --       entirely synthesized, by looking at the bounds, and the immediate
@@ -2503,7 +2504,7 @@ 
 --       tests for static subtypes greatly simplified.
 
 --    Is_Null_Init_Proc (Flag178)
---       Present in procedure entities. Set for generated init proc procedures
+--       Defined in procedure entities. Set for generated init proc procedures
 --       (used to initialize composite types), if the code for the procedure
 --       is null (i.e. is a return and nothing else). Such null initialization
 --       procedures are generated in case some client is compiled using the
@@ -2520,17 +2521,17 @@ 
 --       including generic formal parameters.
 
 --    Is_Obsolescent (Flag153)
---       Present in all entities. Set for any entity for which a valid pragma
+--       Defined in all entities. Set for any entity for which a valid pragma
 --       Obsolescent applies.
 
 --    Is_Only_Out_Parameter (Flag226)
---       Present in formal parameter entities. Set if this parameter is the
+--       Defined in formal parameter entities. Set if this parameter is the
 --       only OUT parameter for this formal part. If there is more than one
 --       out parameter, or if there is some other IN OUT parameter then this
 --       flag is not set in any of them. Used in generation of warnings.
 
 --    Is_Optional_Parameter (Flag134)
---       Present in parameter entities. Set if the parameter is specified as
+--       Defined in parameter entities. Set if the parameter is specified as
 --       optional by use of a First_Optional_Parameter argument to one of the
 --       extended Import pragmas. Can only be set for OpenVMS versions of GNAT.
 
@@ -2543,11 +2544,11 @@ 
 --       False for all other entities.
 
 --    Is_Package_Body_Entity (Flag160)
---       Present in all entities. Set for entities defined at the top level
+--       Defined in all entities. Set for entities defined at the top level
 --       of a package body. Used to control externally generated names.
 
 --    Is_Packed (Flag51) [implementation base type only]
---       Present in all type entities. This flag is set only for record and
+--       Defined in all type entities. This flag is set only for record and
 --       array types which have a packed representation. There are three
 --       cases which cause packing:
 --
@@ -2583,7 +2584,7 @@ 
 --       Is_Packed flag gets turned off.
 
 --    Is_Packed_Array_Type (Flag138)
---       Present in all entities. This flag is set on the entity for the type
+--       Defined in all entities. This flag is set on the entity for the type
 --       used to implement a packed array (either a modular type, or a subtype
 --       of Packed_Bytes{1,2,4} as appropriate). The flag is set if and only
 --       if the type appears in the Packed_Array_Type field of some other type
@@ -2594,26 +2595,26 @@ 
 --       to the original array type for which this is the packed array type.
 
 --    Is_Potentially_Use_Visible (Flag9)
---       Present in all entities. Set if entity is potentially use visible,
+--       Defined in all entities. Set if entity is potentially use visible,
 --       i.e. it is defined in a package that appears in a currently active
 --       use clause (RM 8.4(8)). Note that potentially use visible entities
 --       are not necessarily use visible (RM 8.4(9-11)).
 
 --    Is_Preelaborated (Flag59)
---       Present in all entities, set in E_Package and E_Generic_Package
+--       Defined in all entities, set in E_Package and E_Generic_Package
 --       entities to which a pragma Preelaborate is applied, and also in
 --       all entities within such packages. Note that the fact that this
 --       flag is set does not necesarily mean that no elaboration code is
 --       generated for the package.
 
 --    Is_Primitive (Flag218)
---       Present in overloadable entities and in generic subprograms. Set to
+--       Defined in overloadable entities and in generic subprograms. Set to
 --       indicate that this is a primitive operation of some type, which may
 --       be a tagged type or a non-tagged type. Used to verify overriding
 --       indicators in bodies.
 
 --    Is_Primitive_Wrapper (Flag195)
---       Present in functions and procedures created by the expander to serve
+--       Defined in functions and procedures created by the expander to serve
 --       as an indirection mechanism to overriding primitives of concurrent
 --       types, entries and protected procedures.
 
@@ -2622,19 +2623,19 @@ 
 --       components. Such entities appear as constants or variables.
 
 --    Is_Private_Composite (Flag107)
---       Present in composite types that have a private component. Used to
+--       Defined in composite types that have a private component. Used to
 --       enforce the rule that operations on the composite type that depend
 --       on the full view of the component, do not become visible until the
 --       immediate scope of the composite type itself (7.3.1 (5)). Both this
 --       flag and Is_Limited_Composite are needed.
 
 --    Is_Private_Descendant (Flag53)
---       Present in entities that can represent library units (packages,
+--       Defined in entities that can represent library units (packages,
 --       functions, procedures). Set if the library unit is itself a private
 --       child unit, or if it is the descendent of a private child unit.
 
 --    Is_Private_Primitive (Flag245)
---       Present in subprograms. Set if the operation is a primitive of a
+--       Defined in subprograms. Set if the operation is a primitive of a
 --       tagged type (procedure or function dispatching on result) whose
 --       full view has not been seen. Used in particular for primitive
 --       subprograms of a synchronized type declared between the two views
@@ -2646,24 +2647,24 @@ 
 --       as well as for record with private types as subtypes
 
 --    Is_Processed_Transient (Flag252)
---      Present in entities of variables and constants. Set when a transient
---      object needs to be finalized and it has already been processed by the
---      transient scope machinery. This flag signals the general finalization
---      mechanism to ignore the transient object.
+--       Defined in entities of variables and constants. Set when a transient
+--       object needs to be finalized and it has already been processed by the
+--       transient scope machinery. This flag signals the general finalization
+--       mechanism to ignore the transient object.
 
 --    Is_Protected_Component (synthesized)
 --       Applicable to all entities, true if the entity denotes a private
 --       component of a protected type.
 
 --    Is_Protected_Interface (synthesized)
---       Present in types that are interfaces. True if interface is declared
+--       Defined in types that are interfaces. True if interface is declared
 --       protected, or is derived from protected interfaces.
 
 --    Is_Protected_Type (synthesized)
 --       Applies to all entities, true for protected types and subtypes
 
 --    Is_Public (Flag10)
---       Present in all entities. Set to indicate that an entity defined in
+--       Defined in all entities. Set to indicate that an entity defined in
 --       one compilation unit can be referenced from other compilation units.
 --       If this reference causes a reference in the generated variable, for
 --       example in the case of a variable name, then Gigi will generate an
@@ -2674,7 +2675,7 @@ 
 --       Corresponding_Concurrent_Type is a protected type.
 
 --    Is_Pure (Flag44)
---       Present in all entities. Set in all entities of a unit to which a
+--       Defined in all entities. Set in all entities of a unit to which a
 --       pragma Pure is applied, and also set for the entity of the unit
 --       itself. In addition, this flag may be set for any other functions
 --       or procedures that are known to be side effect free, so in the case
@@ -2684,16 +2685,16 @@ 
 --       by access parameters).
 
 --    Is_Pure_Unit_Access_Type (Flag189)
---       Present in access type and subtype entities. Set if the type or
+--       Defined in access type and subtype entities. Set if the type or
 --       subtype appears in a pure unit. Used to give an error message at
 --       freeze time if the access type has a storage pool.
 
 --    Is_RACW_Stub_Type (Flag244)
---       Present in all types, true for the stub types generated for remote
+--       Defined in all types, true for the stub types generated for remote
 --       access-to-class-wide types.
 
 --    Is_Raised (Flag224)
---       Present in exception entities. Set if the entity is referenced by a
+--       Defined in exception entities. Set if the entity is referenced by a
 --       a raise statement.
 
 --    Is_Real_Type (synthesized)
@@ -2704,29 +2705,29 @@ 
 --       includes class-wide types and subtypes (which are also records)
 
 --    Is_Remote_Call_Interface (Flag62)
---       Present in all entities. Set in E_Package and E_Generic_Package
+--       Defined in all entities. Set in E_Package and E_Generic_Package
 --       entities to which a pragma Remote_Call_Interface is applied, and
 --       also on entities declared in the visible part of such a package.
 
 --    Is_Remote_Types (Flag61)
---       Present in all entities. Set in E_Package and E_Generic_Package
+--       Defined in all entities. Set in E_Package and E_Generic_Package
 --       entities to which a pragma Remote_Types is applied, and also on
 --       entities declared in the visible part of the spec of such a package.
 --       Also set for types which are generic formal types to which the
 --       pragma Remote_Access_Type applies.
 
 --    Is_Renaming_Of_Object (Flag112)
---       Present in all entities, set only for a variable or constant for
+--       Defined in all entities, set only for a variable or constant for
 --       which the Renamed_Object field is non-empty and for which the
 --       renaming is handled by the front end, by macro substitution of
 --       a copy of the (evaluated) name tree whereever the variable is used.
 
 --    Is_Return_Object (Flag209)
---       Present in all object entities. True if the object is the return
+--       Defined in all object entities. True if the object is the return
 --       object of an extended_return_statement; False otherwise.
 
 --    Is_Safe_To_Reevaluate (Flag249)
---       Present in all entities. Set in variables that are initialized by
+--       Defined in all entities. Set in variables that are initialized by
 --       means of an assignment statement. When initialized their contents
 --       never change and hence they can be seen by the backend as constants.
 --       See also Is_True_Constant.
@@ -2735,7 +2736,7 @@ 
 --       Applies to all entities, true for scalar types and subtypes
 
 --    Is_Shared_Passive (Flag60)
---       Present in all entities. Set in E_Package and E_Generic_Package
+--       Defined in all entities. Set in E_Package and E_Generic_Package
 --       entities to which a pragma Shared_Passive is applied, and also in
 --       all entities within such packages.
 
@@ -2745,7 +2746,7 @@ 
 --       Wide_Wide_Character).
 
 --    Is_Statically_Allocated (Flag28)
---       Present in all entities. This can only be set True for exception,
+--       Defined in all entities. This can only be set True for exception,
 --       variable, constant, and type/subtype entities. If the flag is set,
 --       then the variable or constant must be allocated statically rather
 --       than on the local stack frame. For exceptions, the meaning is that
@@ -2771,21 +2772,21 @@ 
 --       entities.
 
 --    Is_Synchronized_Interface (synthesized)
---       Present in types that are interfaces. True if interface is declared
+--       Defined in types that are interfaces. True if interface is declared
 --       synchronized, task, or protected, or is derived from a synchronized
 --       interface.
 
 --    Is_Tag (Flag78)
---       Present in E_Component and E_Constant entities. For regular tagged
+--       Defined in E_Component and E_Constant entities. For regular tagged
 --       type this flag is set on the tag component (whose name is Name_uTag).
 --       For CPP_Class tagged types, this flag marks the pointer to the main
 --       vtable (i.e. the one to be extended by derivation).
 
 --    Is_Tagged_Type (Flag55)
---       Present in all entities. Set for an entity for a tagged type.
+--       Defined in all entities. Set for an entity for a tagged type.
 
 --    Is_Task_Interface (synthesized)
---       Present in types that are interfaces. True if interface is declared as
+--       Defined in types that are interfaces. True if interface is declared as
 --       a task interface, or if it is derived from task interfaces.
 
 --    Is_Task_Record_Type (synthesized)
@@ -2796,7 +2797,7 @@ 
 --       Applies to all entities. True for task types and subtypes
 
 --    Is_Thunk (Flag225)
---       Present in all entities for subprograms (functions, procedures, and
+--       Defined in all entities for subprograms (functions, procedures, and
 --       operators). True for subprograms that are thunks, that is small
 --       subprograms built by the expander for tagged types that cover
 --       interface types. At run-time thunks displace the pointer to the object
@@ -2806,13 +2807,13 @@ 
 --       handle extra actuals associated with accessibility level.
 
 --    Is_Trivial_Subprogram (Flag235)
---       Present in all entities. Set in subprograms where either the body
+--       Defined in all entities. Set in subprograms where either the body
 --       consists of a single null statement, or the first or only statement
 --       of the body raises an exception. This is used for suppressing certain
 --       warnings, see Sem_Ch6.Analyze_Subprogram_Body discussion for details.
 
 --    Is_True_Constant (Flag163)
---       Present in all entities for constants and variables. Set in constants
+--       Defined in all entities for constants and variables. Set in constants
 --       and variables which have an initial value specified but which are
 --       never assigned, partially or in the whole. For variables, it means
 --       that the variable was initialized but never modified, and hence can be
@@ -2825,18 +2826,18 @@ 
 --       Applies to all entities, true for a type entity
 
 --    Is_Unchecked_Union (Flag117) [implementation base type only]
---       Present in all entities. Set only in record types to which the
+--       Defined in all entities. Set only in record types to which the
 --       pragma Unchecked_Union has been validly applied.
 
 --    Is_Underlying_Record_View (Flag246) [base type only]
---       Present in all entities. Set only in record types that represent the
+--       Defined in all entities. Set only in record types that represent the
 --       underlying record view. This view is built for derivations of types
 --       with unknown discriminants; it is a record with the same structure
 --       as its corresponding record type, but whose parent is the full view
 --       of the parent in the original type extension.
 
 --    Is_Unsigned_Type (Flag144)
---       Present in all types, but can be set only for discrete and fixed-point
+--       Defined in all types, but can be set only for discrete and fixed-point
 --       type and subtype entities. This flag is only valid if the entity is
 --       frozen. If set it indicates that the representation is known to be
 --       unsigned (i.e. that no negative values appear in the range). This is
@@ -2848,29 +2849,29 @@ 
 --       at its bounds or the bounds of the corresponding base type.
 
 --    Is_Valued_Procedure (Flag127)
---       Present in procedure entities. Set if an Import_Valued_Procedure
+--       Defined in procedure entities. Set if an Import_Valued_Procedure
 --       or Export_Valued_Procedure pragma applies to the procedure entity.
 
 --    Is_Visible_Child_Unit (Flag116)
---       Present in compilation units that are child units. Once compiled,
+--       Defined in compilation units that are child units. Once compiled,
 --       child units remain chained to the entities in the parent unit, and
 --       a separate flag must be used to indicate whether the names are
 --       visible by selected notation, or not.
 
 --    Is_Visible_Formal (Flag206)
---       Present in all entities. Set True for instances of the formals of a
+--       Defined in all entities. Set True for instances of the formals of a
 --       formal package. Indicates that the entity must be made visible in the
 --       body of the instance, to reproduce the visibility of the generic.
 --       This simplifies visibility settings in instance bodies.
 
 --    Is_VMS_Exception (Flag133)
---       Present in all entities. Set only for exception entities where the
+--       Defined in all entities. Set only for exception entities where the
 --       exception was specified in an Import_Exception or Export_Exception
 --       pragma with the VMS option for Form. See description of these pragmas
 --       for details. This flag can only be set in OpenVMS versions of GNAT.
 
 --    Is_Volatile (Flag16)
---       Present in all type entities, and also in constants, components and
+--       Defined in all type entities, and also in constants, components and
 --       variables. Set if a pragma Volatile applies to the entity. Also set
 --       if pragma Shared or pragma Atomic applies to entity. In the case of
 --       private or incomplete types, this flag is set in both the private
@@ -2884,30 +2885,30 @@ 
 --       rather than testing this flag.
 
 --    Is_Wrapper_Package (synthesized)
---       Present in package entities. Indicates that the package has been
+--       Defined in package entities. Indicates that the package has been
 --       created as a wrapper for a subprogram instantiation.
 
 --    Itype_Printed (Flag202)
---       Present in all type and subtype entities. Set in Itypes if the Itype
+--       Defined in all type and subtype entities. Set in Itypes if the Itype
 --       has been printed by Sprint. This is used to avoid printing an Itype
 --       more than once.
 
 --    Kill_Elaboration_Checks (Flag32)
---       Present in all entities. Set by the expander to kill elaboration
+--       Defined in all entities. Set by the expander to kill elaboration
 --       checks which are known not to be needed. Equivalent in effect to
 --       the use of pragma Suppress (Elaboration_Checks) for that entity
 --       except that the effect is permanent and cannot be undone by a
 --       subsequent pragma Unsuppress.
 
 --    Kill_Range_Checks (Flag33)
---       Present in all entities. Equivalent in effect to the use of pragma
+--       Defined in all entities. Equivalent in effect to the use of pragma
 --       Suppress (Range_Checks) for that entity except that the result is
 --       permanent and cannot be undone by a subsequent pragma Unsuppress.
 --       This is currently only used in one odd situation in Sem_Ch3 for
 --       record types, and it would be good to get rid of it???
 
 --    Known_To_Have_Preelab_Init (Flag207)
---       Present in all type and subtype entities. If set, then the type is
+--       Defined in all type and subtype entities. If set, then the type is
 --       known to have preelaborable initialization. In the case of a partial
 --       view of a private type, it is only possible for this to be set if a
 --       pragma Preelaborable_Initialization is given for the type. For other
@@ -2916,14 +2917,14 @@ 
 --       preelaborable initialization.
 
 --    Last_Assignment (Node26)
---       Present in entities for variables, and OUT or IN OUT formals. Set for
+--       Defined in entities for variables, and OUT or IN OUT formals. Set for
 --       a local variable or formal to point to the left side of an assignment
 --       statement assigning a value to the variable. Cleared if the value of
 --       the entity is referenced. Used to warn about dubious assignment
 --       statements whose value is not used.
 
 --    Last_Entity (Node20)
---       Present in all entities which act as scopes to which a list of
+--       Defined in all entities which act as scopes to which a list of
 --       associated entities is attached (blocks, class subtypes and types,
 --       entries, functions, loops, packages, procedures, protected objects,
 --       record types and subtypes, private types, task types and subtypes).
@@ -2938,28 +2939,28 @@ 
 --       definition) or in an entry.
 
 --    Limited_View (Node23)
---       Present in non-generic package entities that are not instances. Bona
+--       Defined in non-generic package entities that are not instances. Bona
 --       fide package with the limited-view list through the first_entity and
 --       first_private attributes. The elements of this list are the shadow
 --       entities created for the types and local packages that are declared
 --       in a package appearing in a limited_with clause (Ada 2005: AI-50217)
 
 --    Lit_Indexes (Node15)
---       Present in enumeration types and subtypes. Non-empty only for the
+--       Defined in enumeration types and subtypes. Non-empty only for the
 --       case of an enumeration root type, where it contains the entity for
 --       the generated indexes entity. See unit Exp_Imgv for full details of
 --       the nature and use of this entity for implementing the Image and
 --       Value attributes for the enumeration type in question.
 
 --    Lit_Strings (Node16)
---       Present in enumeration types and subtypes. Non-empty only for the
+--       Defined in enumeration types and subtypes. Non-empty only for the
 --       case of an enumeration root type, where it contains the entity for
 --       the literals string entity. See unit Exp_Imgv for full details of
 --       the nature and use of this entity for implementing the Image and
 --       Value attributes for the enumeration type in question.
 
 --    Low_Bound_Tested (Flag205)
---       Present in all entities. Currently this can only be set True for
+--       Defined in all entities. Currently this can only be set True for
 --       formal parameter entries of a standard unconstrained one-dimensional
 --       array or string type. Indicates that an explicit test of the low bound
 --       of the formal appeared in the code, e.g. in a pragma Assert. If this
@@ -2967,14 +2968,14 @@ 
 --       are suppressed.
 
 --    Machine_Radix_10 (Flag84)
---       Present in decimal types and subtypes, set if the Machine_Radix is 10,
+--       Defined in decimal types and subtypes, set if the Machine_Radix is 10,
 --       as the result of the specification of a machine radix representation
 --       clause. Note that it is possible for this flag to be set without
 --       having Has_Machine_Radix_Clause True. This happens when a type is
 --       derived from a type with a clause present.
 
 --    Master_Id (Node17)
---       Present in access types and subtypes. Empty unless Has_Task is
+--       Defined in access types and subtypes. Empty unless Has_Task is
 --       set for the designated type, in which case it points to the entity
 --       for the Master_Id for the access type master. Also set for access-to-
 --       limited-class-wide types whose root may be extended with task
@@ -2982,25 +2983,25 @@ 
 --       used to reference tasks implementing such interface.
 
 --    Materialize_Entity (Flag168)
---       Present in all entities. Set only for renamed obects which should be
+--       Defined in all entities. Set only for renamed obects which should be
 --       materialized for debugging purposes. This means that a memory location
 --       containing the renamed address should be allocated. This is needed so
 --       that the debugger can find the entity.
 
 --    Mechanism (Uint8) (returned as Mechanism_Type)
---       Present in functions and non-generic formal parameters. Indicates
+--       Defined in functions and non-generic formal parameters. Indicates
 --       the mechanism to be used for the function return or for the formal
 --       parameter. See separate section on passing mechanisms. This field
 --       is also set (to the default value of zero) in a subprogram body
 --       entity but not used in this context.
 
 --    Modulus (Uint17) [base type only]
---       Present in modular types. Contains the modulus. For the binary case,
+--       Defined in modular types. Contains the modulus. For the binary case,
 --       this will be a power of 2, but if Non_Binary_Modulus is set, then it
 --       will not be a power of 2.
 
 --    Must_Be_On_Byte_Boundary (Flag183)
---       Present in entities for types and subtypes. Set if objects of the type
+--       Defined in entities for types and subtypes. Set if objects of the type
 --       must always be allocated on a byte boundary (more accurately a storage
 --       unit boundary). The front end checks that component clauses respect
 --       this rule, and the back end ensures that record packing does not
@@ -3008,14 +3009,14 @@ 
 --       longer than 64 bits where the component size is not a power of 2.
 
 --    Must_Have_Preelab_Init (Flag208)
---       Present in entities for types and subtypes. Set in the full type of a
+--       Defined in entities for types and subtypes. Set in the full type of a
 --       private type or subtype if a pragma Has_Preelaborable_Initialization
 --       is present for the private type. Used to check that the full type has
 --       preelaborable initialization at freeze time (this has to be deferred
 --       to the freeze point because of the rule about overriding Initialize).
 
 --    Needs_Debug_Info (Flag147)
---       Present in all entities. Set if the entity requires normal debugging
+--       Defined in all entities. Set if the entity requires normal debugging
 --       information to be generated. This is true of all entities that have
 --       Comes_From_Source set, and also transitively for entities associated
 --       with such components (e.g. their types). It is true for all entities
@@ -3026,7 +3027,7 @@ 
 --       so that the flag is set properly on subsidiary entities.
 
 --    Needs_No_Actuals (Flag22)
---       Present in callable entities (subprograms, entries, access to
+--       Defined in callable entities (subprograms, entries, access to
 --       subprograms)  which can be called without actuals because all of
 --       their formals (if any) have default values. This flag simplifies the
 --       resolution of the syntactic ambiguity involving a call to these
@@ -3035,7 +3036,7 @@ 
 --       used to resolve various cases of entry calls.
 
 --    Never_Set_In_Source (Flag115)
---       Present in all entities, but can be set only for variables and
+--       Defined in all entities, but can be set only for variables and
 --       parameters. This flag is set if the object is never assigned a value
 --       in user source code, either by assignment or by being used as an out
 --       or in out parameter. Note that this flag is not reset from using an
@@ -3098,7 +3099,7 @@ 
 --       Returns Empty if there are no more.
 
 --    Next_Entity (Node2)
---       Present in all entities. The entities of a scope are chained, with
+--       Defined in all entities. The entities of a scope are chained, with
 --       the head of the list being in the First_Entity field of the scope
 --       entity. All entities use the Next_Entity field as a forward pointer
 --       for this list, with Empty indicating the end of the list. Since this
@@ -3126,7 +3127,7 @@ 
 --       nodes for the indexes, not to entities.
 
 --    Next_Inlined_Subprogram (Node12)
---       Present in subprograms. Used to chain inlined subprograms used in
+--       Defined in subprograms. Used to chain inlined subprograms used in
 --       the current compilation, in the order in which they must be compiled
 --       by Gigi to insure that all inlinings are performed.
 
@@ -3136,44 +3137,44 @@ 
 --       for Next, but its use is preferred in this context.
 
 --    Non_Binary_Modulus (Flag58) [base type only]
---       Present in all subtype and type entities. Set for modular integer
+--       Defined in all subtype and type entities. Set for modular integer
 --       types if the modulus value is other than a power of 2.
 
 --    Non_Limited_View (Node17)
---       Present in incomplete types that are the shadow entities created
+--       Defined in incomplete types that are the shadow entities created
 --       when analyzing a limited_with_clause (Ada 2005: AI-50217). Points to
 --       the defining entity in the original declaration.
 
 --    Nonzero_Is_True (Flag162) [base type only]
---       Present in enumeration types. True if any non-zero value is to be
+--       Defined in enumeration types. True if any non-zero value is to be
 --       interpreted as true. Currently this is set true for derived Boolean
 --       types which have a convention of C, C++ or Fortran.
 
 --    No_Pool_Assigned (Flag131) [root type only]
---       Present in access types. Set if a storage size clause applies to the
+--       Defined in access types. Set if a storage size clause applies to the
 --       variable with a static expression value of zero. This flag is used to
 --       generate errors if any attempt is made to allocate or free an instance
 --       of such an access type. This is set only in the root type, since
 --       derived types must have the same pool.
 
 --    No_Return (Flag113)
---       Present in all entities. Always false except in the case of procedures
+--       Defined in all entities. Always false except in the case of procedures
 --       and generic procedures for which a pragma No_Return is given.
 
 --    Normalized_First_Bit (Uint8)
---       Present in components and discriminants. Indicates the normalized
+--       Defined in components and discriminants. Indicates the normalized
 --       value of First_Bit for the component, i.e. the offset within the
 --       lowest addressed storage unit containing part or all of the field.
 --       Set to No_Uint if no first bit position is assigned yet.
 
 --    Normalized_Position (Uint14)
---       Present in components and discriminants. Indicates the normalized
+--       Defined in components and discriminants. Indicates the normalized
 --       value of Position for the component, i.e. the offset in storage
 --       units from the start of the record to the lowest addressed storage
 --       unit containing part or all of the field.
 
 --    Normalized_Position_Max (Uint10)
---       Present in components and discriminants. For almost all cases, this
+--       Defined in components and discriminants. For almost all cases, this
 --       is the same as Normalized_Position. The one exception is for the case
 --       of a discriminated record containing one or more arrays whose length
 --       depends on discriminants. In this case, the Normalized_Position_Max
@@ -3184,7 +3185,7 @@ 
 --       there are default discriminants, and also for the 'Size value).
 
 --    No_Strict_Aliasing (Flag136) [base type only]
---       Present in access types. Set to direct the back end to avoid any
+--       Defined in access types. Set to direct the back end to avoid any
 --       optimizations based on an assumption about the aliasing status of
 --       objects designated by the access type. For the case of the gcc
 --       back end, the effect is as though all references to objects of
@@ -3206,7 +3207,7 @@ 
 --       formals as a value of type Pos.
 
 --    OK_To_Rename (Flag247)
---       Present only in entities for variables. If this flag is set, it
+--       Defined only in entities for variables. If this flag is set, it
 --       means that if the entity is used as the initial value of an object
 --       declaration, the object declaration can be safely converted into a
 --       renaming to avoid an extra copy. This is set for variables which are
@@ -3217,13 +3218,13 @@ 
 --       types, it is cheaper to do the copy.
 
 --    OK_To_Reorder_Components (Flag239) [base type only]
---       Present in record types. Set if the back end is permitted to reorder
+--       Defined in record types. Set if the back end is permitted to reorder
 --       the components. If not set, the record must be layed out in the order
 --       in which the components are declared textually. Currently this flag
 --       can only be set by debug switches.
 
 --    Optimize_Alignment_Space (Flag241)
---       A flag present in type, subtype, variable, and constant entities. This
+--       Defined in type, subtype, variable, and constant entities. This
 --       flag records that the type or object is to be layed out in a manner
 --       consistent with Optimize_Alignment (Space) mode. The compiler and
 --       binder ensure a consistent view of any given type or object. If pragma
@@ -3231,7 +3232,7 @@ 
 --       of the flags Optimize_Alignment_Space/Optimize_Alignment_Time is set.
 
 --    Optimize_Alignment_Time (Flag242)
---       A flag present in type, subtype, variable, and constant entities. This
+--       Defined in type, subtype, variable, and constant entities. This
 --       flag records that the type or object is to be layed out in a manner
 --       consistent with Optimize_Alignment (Time) mode. The compiler and
 --       binder ensure a consistent view of any given type or object. If pragma
@@ -3239,20 +3240,20 @@ 
 --       of the flags Optimize_Alignment_Space/Optimize_Alignment_Time is set.
 
 --    Original_Access_Type (Node26)
---       Present in E_Access_Subprogram_Type entities. Set only if the access
+--       Defined in E_Access_Subprogram_Type entities. Set only if the access
 --       type was generated by the expander as part of processing an access
 --       to protected subprogram type. Points to the access to protected
 --       subprogram type.
 
 --    Original_Array_Type (Node21)
---       Present in modular types and array types and subtypes. Set only
+--       Defined in modular types and array types and subtypes. Set only
 --       if the Is_Packed_Array_Type flag is set, indicating that the type
 --       is the implementation type for a packed array, and in this case it
 --       points to the original array type for which this is the packed
 --       array implementation type.
 
 --    Original_Record_Component (Node22)
---       Present in components, including discriminants. The usage depends
+--       Defined in components, including discriminants. The usage depends
 --       on whether the record is a base type and whether it is tagged.
 --
 --       In base tagged types:
@@ -3272,11 +3273,11 @@ 
 --         Points to the component in the base type.
 
 --    Overlays_Constant (Flag243)
---       Present in all entities. Set only for a variable for which there is
+--       Defined in all entities. Set only for a variable for which there is
 --       an address clause which causes the variable to overlay a constant.
 
 --    Overridden_Operation (Node26)
---       Present in subprograms. For overriding operations, points to the
+--       Defined in subprograms. For overriding operations, points to the
 --       user-defined parent subprogram that is being overridden. Note: this
 --       attribute uses the same field as Static_Initialization. The latter
 --       is only defined for internal initialization procedures, for which
@@ -3284,7 +3285,7 @@ 
 --       set for init_procs.
 
 --    Package_Instantiation (Node26)
---       Present in packages and generic packages. When present, this field
+--       Defined in packages and generic packages. When defined, this field
 --       references an N_Generic_Instantiation node associated with an
 --       instantiated package. In the case where the referenced node has
 --       been rewritten to an N_Package_Specification, the instantiation
@@ -3296,7 +3297,7 @@ 
 --       with formal packages. ???
 
 --    Packed_Array_Type (Node23)
---       Present in array types and subtypes, including the string literal
+--       Defined in array types and subtypes, including the string literal
 --       subtype case, if the corresponding type is packed (either bit packed
 --       or packed to eliminate holes in non-contiguous enumeration type index
 --       types). References the type used to represent the packed array, which
@@ -3313,23 +3314,23 @@ 
 --       is one of E_[In/Out/In_Out]_Parameter)
 
 --    Parent_Subtype (Node19) [base type only]
---       Present in E_Record_Type. Set only for derived tagged types, in which
+--       Defined in E_Record_Type. Set only for derived tagged types, in which
 --       case it points to the subtype of the parent type. This is the type
 --       that is used as the Etype of the _parent field.
 
 --    Postcondition_Proc (Node8)
---       Present only in procedure entities, saves the entity of the generated
+--       Defined only in procedure entities, saves the entity of the generated
 --       postcondition proc if one is present, otherwise is set to Empty. Used
 --       to generate the call to this procedure in case the expander inserts
 --       implicit return statements.
 
 --    PPC_Wrapper (Node25)
---       Present in entries and entry families. Set only if pre- or post-
+--       Defined in entries and entry families. Set only if pre- or post-
 --       conditions are present. The precondition_wrapper body is the original
 --       entry call, decorated with the given precondition for the entry.
 
 --    Predicate_Function (synthesized)
---       Present in all types. Set for types for which (Has_Predicates is True)
+--       Defined in all types. Set for types for which (Has_Predicates is True)
 --       and for which a predicate procedure has been built that tests that the
 --       specified predicates are True. Contains the entity for the function
 --       which takes a single argument of the given type, and returns True if
@@ -3339,23 +3340,23 @@ 
 --       way this is stored is as an element of the Subprograms_For_Type field.
 
 --    Primitive_Operations (synthesized)
---       Present in concurrent types, tagged record types and subtypes, tagged
+--       Defined in concurrent types, tagged record types and subtypes, tagged
 --       private types and tagged incomplete types. For concurrent types whose
 --       Corresponding_Record_Type (CRT) is available, returns the list of
 --       Direct_Primitive_Operations of its CRT; otherwise returns No_Elist.
 --       For all the other types returns the Direct_Primitive_Operations.
 
 --    Prival (Node17)
---       Present in private components of protected types. Refers to the entity
+--       Defined in private components of protected types. Refers to the entity
 --       of the component renaming declaration generated inside protected
 --       subprograms, entries or barrier functions.
 
 --    Prival_Link (Node20)
---       Present in constants and variables which rename private components of
+--       Defined in constants and variables which rename private components of
 --       protected types. Set to the original private component.
 
 --    Private_Dependents (Elist18)
---       Present in private (sub)types. Records the subtypes of the private
+--       Defined in private (sub)types. Records the subtypes of the private
 --       type, derivations from it, and records and arrays with components
 --       dependent on the type.
 --
@@ -3386,13 +3387,13 @@ 
 --       restore the private view saved in the shadow.
 
 --    Protected_Formal (Node22)
---       Present in formal parameters (in, in out and out parameters). Used
+--       Defined in formal parameters (in, in out and out parameters). Used
 --       only for formals of protected operations. References corresponding
 --       formal parameter in the unprotected version of the operation that
 --       is created during expansion.
 
 --    Protected_Body_Subprogram (Node11)
---       Present in protected operations. References the entity for the
+--       Defined in protected operations. References the entity for the
 --       subprogram which implements the body of the operation.
 
 --    Protection_Object (Node23)
@@ -3401,32 +3402,32 @@ 
 --       types.
 
 --    Reachable (Flag49)
---       Present in labels. The flag is set over the range of statements in
+--       Defined in labels. The flag is set over the range of statements in
 --       which a goto to that label is legal.
 
 --    Referenced (Flag156)
---       Present in all entities. Set if the entity is referenced, except for
+--       Defined in all entities. Set if the entity is referenced, except for
 --       the case of an appearance of a simple variable that is not a renaming
 --       as the left side of an assignment in which case Referenced_As_LHS is
 --       set instead, or a similar appearance as an out parameter actual, in
 --       which case Referenced_As_Out_Parameter is set.
 
 --    Referenced_As_LHS (Flag36):
---       Present in all entities. This flag is set instead of Referenced if a
+--       Defined in all entities. This flag is set instead of Referenced if a
 --       simple variable that is not a renaming appears as the left side of an
 --       assignment. The reason we distinguish this kind of reference is that
 --       we have a separate warning for variables that are only assigned and
 --       never read.
 
 --    Referenced_As_Out_Parameter (Flag227):
---       Present in all entities. This flag is set instead of Referenced if a
+--       Defined in all entities. This flag is set instead of Referenced if a
 --       simple variable that is not a renaming appears as an actual for an out
 --       formal. The reason we distinguish this kind of reference is that
 --       we have a separate warning for variables that are only assigned and
 --       never read, and out parameters are a special case.
 
 --    Register_Exception_Call (Node20)
---       Present in exception entities. When an exception is declared,
+--       Defined in exception entities. When an exception is declared,
 --       a call is expanded to Register_Exception. This field points to
 --       the expanded N_Procedure_Call_Statement node for this call. It
 --       is used for Import/Export_Exception processing to modify the
@@ -3434,13 +3435,13 @@ 
 --       used for handling these pragmas at runtime.
 
 --    Related_Array_Object (Node25)
---       Present in array types and subtypes. Used only for the base type
+--       Defined in array types and subtypes. Used only for the base type
 --       and subtype created for an anonymous array object. Set to point
 --       to the entity of the corresponding array object. Currently used
 --       only for type-related error messages.
 
 --    Related_Expression (Node24)
---       Present in variables and types. Set only for internally generated
+--       Defined in variables and types. Set only for internally generated
 --       entities, where it may be used to denote the source expression whose
 --       elaboration created the variable declaration. If set, it is used
 --       for generating clearer messages from CodePeer.
@@ -3449,40 +3450,40 @@ 
 --       odd to have two mechanisms here???
 
 --    Related_Instance (Node15)
---       Present in the wrapper packages created for subprogram instances.
+--       Defined in the wrapper packages created for subprogram instances.
 --       The internal subprogram that implements the instance is inside the
 --       wrapper package, but for debugging purposes its external symbol
 --       must correspond to the name and scope of the related instance.
 
 --    Related_Type (Node27)
---       Present in components, constants and variables. Set when there is an
+--       Defined in components, constants and variables. Set when there is an
 --       associated dispatch table to point to entities containing primary or
 --       secondary tags. Not set in the _tag component of record types.
 
 --    Relative_Deadline_Variable (Node26) [implementation base type only]
---       Present in task type entities. This flag is set if a valid and
+--       Defined in task type entities. This flag is set if a valid and
 --       effective pragma Relative_Deadline applies to the base type. Points
 --       to the entity for a variable that is created to hold the value given
 --       in a Relative_Deadline pragma for a task type.
 
 --    Renamed_Entity (Node18)
---       Present in exceptions, packages, subprograms and generic units. Set
+--       Defined in exceptions, packages, subprograms and generic units. Set
 --       for entities that are defined by a renaming declaration. Denotes the
 --       renamed entity, or transitively the ultimate renamed entity if
 --       there is a chain of renaming declarations. Empty if no renaming.
 
 --    Renamed_In_Spec (Flag231)
 
---       Present in package entities. If a package renaming occurs within
+--       Defined in package entities. If a package renaming occurs within
 --       a package spec, then this flag is set on the renamed package. The
 --       purpose is to prevent a warning about unused entities in the renamed
 --       package. Such a warning would be inappropriate since clients of the
 --       package can see the entities in the package via the renaming.
 
 --    Renamed_Object (Node18)
---       Present in all objects (constants, variables, components, formal
+--       Defined in all objects (constants, variables, components, formal
 --       parameters, generic formal parameters, and loop parameters).
---       ??? Present in discriminants?
+--       ??? Defined in discriminants?
 --       Set non-Empty if the object was declared by a renaming declaration,
 --       in which case it references the tree node for the name of the renamed
 --       object. This is only possible for the variable and constant cases.
@@ -3493,8 +3494,8 @@ 
 --       Empty otherwise (it is always empty for loop parameters).
 
 --    Renaming_Map (Uint9)
---       Present in generic subprograms, generic packages, and their
---       instances. Also present in the instances of the corresponding
+--       Defined in generic subprograms, generic packages, and their
+--       instances. Also defined in the instances of the corresponding
 --       bodies. Denotes the renaming map (generic entities => instance
 --       entities) used to construct the instance by givin an index into
 --       the tables used to represent these maps. See Sem_Ch12 for further
@@ -3502,32 +3503,32 @@ 
 --       instance is the actual corresponding to a formal package.
 
 --    Requires_Overriding (Flag213)
---       Present in all subprograms and entries. Set for subprograms that
+--       Defined in all subprograms and entries. Set for subprograms that
 --       require overriding as defined by RM-2005-3.9.3(6/2). Note that this
 --       is True only for implicitly declare subprograms; it is not set on the
 --       parent type's subprogram. See also Is_Abstract_Subprogram.
 
 --    Return_Present (Flag54)
---       Present in function and generic function entities. Set if the
+--       Defined in function and generic function entities. Set if the
 --       function contains a return statement (used for error checking).
 --       This flag can also be set in procedure and generic procedure
 --       entities (for convenience in setting it), but is only tested
 --       for the function case.
 
 --    Return_Applies_To (Node8)
---       Present in E_Return_Statement. Points to the entity representing
+--       Defined in E_Return_Statement. Points to the entity representing
 --       the construct to which the return statement applies, as defined in
 --       RM-6.5(4/2). Note that a (simple) return statement within an
 --       extended_return_statement applies to the extended_return_statement,
 --       even though it causes the whole function to return.
 
 --    Returns_By_Ref (Flag90)
---       Present in function entities, to indicate that the function
+--       Defined in function entities, to indicate that the function
 --       returns the result by reference, either because its return type is a
 --       by-reference-type or because it uses explicitly the secondary stack.
 
 --    Reverse_Bit_Order (Flag164) [base type only]
---       Present in all record type entities. Set if entity has a Bit_Order
+--       Defined in all record type entities. Set if entity has a Bit_Order
 --       aspect (set by an aspect clause or attribute definition clause) that
 --       has reversed the order of bits from the default value. When this flag
 --       is set, a component clause must specify a set of bits entirely within
@@ -3535,7 +3536,7 @@ 
 --       Ada 2005 AI-133), or must occupy an integral number of storage units.
 
 --    Reverse_Storage_Order (Flag93) [base type only]
---       Present in all record and array type entities. Set if entity has a
+--       Defined in all record and array type entities. Set if entity has a
 --       Scalar_Storage_Order aspect (set by an aspect clause or attribute
 --       definition clause) that has reversed the order of storage elements
 --       from the default value. When this flag is set for a record type,
@@ -3543,7 +3544,7 @@ 
 --       or as the target default value).
 
 --    RM_Size (Uint13)
---       Present in all type and subtype entities. Contains the value of
+--       Defined in all type and subtype entities. Contains the value of
 --       type'Size as defined in the RM. See also the Esize field and
 --       and the description on "Handling of Type'Size Values". A value
 --       of zero in this field for a non-discrete type means that
@@ -3562,7 +3563,7 @@ 
 --       in the RM root type applies to a class of types, not to a type.
 
 --    Scalar_Range (Node20)
---       Present in all scalar types (including modular types, where the
+--       Defined in all scalar types (including modular types, where the
 --       bounds are 0 .. modulus - 1). References a node in the tree that
 --       contains the bounds for the range. Note that this information
 --       could be obtained by rummaging around the tree, but it is more
@@ -3572,12 +3573,12 @@ 
 --       subtype reference (a subtype is converted into a range).
 
 --    Scale_Value (Uint15)
---       Present in decimal fixed-point types and subtypes. Contains the scale
+--       Defined in decimal fixed-point types and subtypes. Contains the scale
 --       for the type (i.e. the value of type'Scale = the number of decimal
 --       digits after the decimal point).
 
 --    Scope (Node3)
---       Present in all entities. Points to the entity for the scope (block,
+--       Defined in all entities. Points to the entity for the scope (block,
 --       loop, subprogram, package etc.) in which the entity is declared.
 --       Since this field is in the base part of the entity node, the access
 --       routines for this field are in Sinfo. Note that for a child package,
@@ -3592,7 +3593,7 @@ 
 --       is the Scope_Depth of the record scope.
 
 --    Scope_Depth_Value (Uint22)
---       Present in program units, blocks, concurrent types, and entries.
+--       Defined in program units, blocks, concurrent types, and entries.
 --       Indicates the number of scopes that statically enclose the declaration
 --       of the unit or type. Library units have a depth of zero. Note that
 --       record types can act as scopes but do NOT have this field set (see
@@ -3604,13 +3605,13 @@ 
 --       needed, since returns an invalid value in this case!
 
 --    Sec_Stack_Needed_For_Return (Flag167)
---       Present in scope entities (blocks, functions, procedures, tasks,
+--       Defined in scope entities (blocks, functions, procedures, tasks,
 --       entries). Set to True when secondary stack is used to hold the
 --       returned value of a function and thus should not be released on
 --       scope exit.
 
 --    Shadow_Entities (List14)
---       Present in package and generic package entities. Points to a list
+--       Defined in package and generic package entities. Points to a list
 --       of entities that correspond to private types. For each private type
 --       a shadow entity is created that holds a copy of the private view.
 --       In regions of the program where the full views of these private
@@ -3622,12 +3623,12 @@ 
 --       entry and subsequent entries are obtained using Next.
 
 --    Shared_Var_Procs_Instance (Node22)
---       Present in variables. Set non-Empty only if Is_Shared_Passive is
+--       Defined in variables. Set non-Empty only if Is_Shared_Passive is
 --       set, in which case this is the entity for the associated instance of
 --       System.Shared_Storage.Shared_Var_Procs. See Exp_Smem for full details.
 
 --    Size_Check_Code (Node19)
---       Present in constants and variables. Normally Empty. Set if code is
+--       Defined in constants and variables. Normally Empty. Set if code is
 --       generated to check the size of the object. This field is used to
 --       suppress this code if a subsequent address clause is encountered.
 
@@ -3641,13 +3642,13 @@ 
 --       is not applicable to the entity.
 
 --    Size_Depends_On_Discriminant (Flag177)
---       Present in all entities for types and subtypes. Indicates that the
+--       Defined in all entities for types and subtypes. Indicates that the
 --       size of the type depends on the value of one or more discriminants.
 --       Currently, this flag is only set for arrays which have one or more
 --       bounds depending on a discriminant value.
 
 --    Size_Known_At_Compile_Time (Flag92)
---       Present in all entities for types and subtypes. Indicates that the
+--       Defined in all entities for types and subtypes. Indicates that the
 --       size of objects of the type is known at compile time. This flag is
 --       used to optimize some generated code sequences, and also to enable
 --       some error checks (e.g. disallowing component clauses on variable
@@ -3657,18 +3658,18 @@ 
 --       assume that it is not known).
 
 --    Small_Value (Ureal21)
---       Present in fixed point types. Points to the universal real for the
+--       Defined in fixed point types. Points to the universal real for the
 --       Small of the type, either as given in a representation clause, or
 --       as computed (as a power of two) by the compiler.
 
 --    Spec_Entity (Node19)
---       Present in package body entities. Points to corresponding package
---       spec entity. Also present in subprogram body parameters in the
+--       Defined in package body entities. Points to corresponding package
+--       spec entity. Also defined in subprogram body parameters in the
 --       case where there is a separate spec, where this field references
 --       the corresponding parameter entities in the spec.
 
 --    Static_Predicate (List25)
---       Present in discrete types/subtypes with predicates (Has_Predicates
+--       Defined in discrete types/subtypes with predicates (Has_Predicates
 --       set True). Set if the type/subtype has a static predicate. Points to
 --       a list of expression and N_Range nodes that represent the predicate
 --       in canonical form. The canonical form has entries sorted in ascending
@@ -3679,7 +3680,7 @@ 
 --       within the subtype range.
 
 --    Status_Flag_Or_Transient_Decl (Node15)
---       Present in variables and constants. Applies to objects that require
+--       Defined in variables and constants. Applies to objects that require
 --       special treatment by the finalization machinery. Such examples are
 --       extended return results, if and case expression results and objects
 --       inside N_Expression_With_Actions nodes. The attribute contains the
@@ -3687,22 +3688,22 @@ 
 --       of code or the declaration of a "hook" object.
 
 --    Storage_Size_Variable (Node15) [implementation base type only]
---       Present in access types and task type entities. This flag is set
+--       Defined in access types and task type entities. This flag is set
 --       if a valid and effective pragma Storage_Size applies to the base
 --       type. Points to the entity for a variable that is created to
 --       hold the value given in a Storage_Size pragma for an access
 --       collection or a task type. Note that in the access type case,
---       this field is present only in the root type (since derived types
+--       this field is defined only in the root type (since derived types
 --       share the same storage pool).
 
 --    Static_Elaboration_Desired (Flag77)
---       Present in library-level packages. Set by the pragma of the same
+--       Defined in library-level packages. Set by the pragma of the same
 --       name, to indicate that static initialization must be attempted for
 --       all types declared in the package, and that a warning must be emitted
 --       for those types to which static initialization is not available.
 
 --    Static_Initialization (Node26)
---       Present in initialization procedures for types whose objects can be
+--       Defined in initialization procedures for types whose objects can be
 --       initialized statically. The value of this attribute is a positional
 --       aggregate whose components are compile-time static values. Used
 --       when available in object declarations to eliminate the call to the
@@ -3711,31 +3712,31 @@ 
 --       irrelevant in init_procs.
 
 --    Stored_Constraint (Elist23)
---       Present in entities that can have discriminants (concurrent types
+--       Defined in entities that can have discriminants (concurrent types
 --       subtypes, record types and subtypes, private types and subtypes,
 --       limited private types and subtypes and incomplete types). Points
 --       to an element list containing the expressions for each of the
 --       stored discriminants for the record (sub)type.
 
 --    Strict_Alignment (Flag145) [implementation base type only]
---       Present in all type entities. Indicates that some containing part
+--       Defined in all type entities. Indicates that some containing part
 --       is either aliased or tagged. This prohibits packing the object
 --       tighter than its natural size and alignment.
 
 --    String_Literal_Length (Uint16)
---       Present in string literal subtypes (which are created to correspond
+--       Defined in string literal subtypes (which are created to correspond
 --       to string literals in the program). Contains the length of the string
 --       literal.
 
 --    String_Literal_Low_Bound (Node15)
---       Present in string literal subtypes (which are created to correspond
+--       Defined in string literal subtypes (which are created to correspond
 --       to string literals in the program). Contains an expression whose
 --       value represents the low bound of the literal. This is a copy of
 --       the low bound of the applicable index constraint if there is one,
 --       or a copy of the low bound of the index base type if not.
 
 --    Subprograms_For_Type (Node29)
---       Present in all type entities, and in subprogram entities. This is used
+--       Defined in all type entities, and in subprogram entities. This is used
 --       to hold a list of subprogram entities for subprograms associated with
 --       the type, linked through the Subprogram_List field of the subprogram
 --       entity. Basically this is a way of multiplexing the single field to
@@ -3745,7 +3746,7 @@ 
 --       names to access entries in this list.
 
 --    Suppress_Elaboration_Warnings (Flag148)
---       Present in all entities, can be set only for subprogram entities and
+--       Defined in all entities, can be set only for subprogram entities and
 --       for variables. If this flag is set then Sem_Elab will not generate
 --       elaboration warnings for the subprogram or variable. Suppression of
 --       such warnings is automatic for subprograms for which elaboration
@@ -3756,7 +3757,7 @@ 
 --       avoid multiple elaboration warnings for the same variable.
 
 --    Suppress_Initialization (Flag105)
---       Present in all type and subtype entities. If set for the base type,
+--       Defined in all type and subtype entities. If set for the base type,
 --       then the generation of initialization procedures is suppressed for the
 --       type. Any other implicit initialiation (e.g. from the use of pragma
 --       Initialize_Scalars) is also suppressed if this flag is set either for
@@ -3766,17 +3767,17 @@ 
 --       table entities set it.
 
 --    Suppress_Style_Checks (Flag165)
---       Present in all entities. Suppresses any style checks specifically
+--       Defined in all entities. Suppresses any style checks specifically
 --       associated with the given entity if set.
 
 --    Suppress_Value_Tracking_On_Call (Flag217)
---       Present in all entities. Set in a scope entity if value tracking is to
+--       Defined in all entities. Set in a scope entity if value tracking is to
 --       be suppressed on any call within the scope. Used when an access to a
 --       local subprogram is computed, to deal with the possibility that this
 --       value may be passed around, and if used, may clobber a local variable.
 
 --    Task_Body_Procedure (Node25)
---       Present in task types and subtypes. Points to the entity for the task
+--       Defined in task types and subtypes. Points to the entity for the task
 --       task body procedure (as further described in Exp_Ch9, task bodies are
 --       expanded into procedures). A convenient function to retrieve this
 --       field is Sem_Util.Get_Task_Body_Procedure.
@@ -3785,7 +3786,7 @@ 
 --       Underlying_Type of the Root_Type???
 
 --    Treat_As_Volatile (Flag41)
---       Present in all type entities, and also in constants, components and
+--       Defined in all type entities, and also in constants, components and
 --       variables. Set if this entity is to be treated as volatile for code
 --       generation purposes. Always set if Is_Volatile is set, but can also
 --       be set as a result of situations (such as address overlays) where
@@ -3816,7 +3817,7 @@ 
 --       bound is in units of small, and is an integer.
 
 --    Underlying_Full_View (Node19)
---       Present in private subtypes that are the completion of other private
+--       Defined in private subtypes that are the completion of other private
 --       types, or in private types that are derived from private subtypes. If
 --       the full view of a private type T is derived from another private type
 --       with discriminants Td, the full view of T is also private, and there
@@ -3830,7 +3831,7 @@ 
 --       can serve directly as the full view of T.
 
 --    Underlying_Record_View (Node28)
---       Present in record types. Set for record types that are extensions of
+--       Defined in record types. Set for record types that are extensions of
 --       types with unknown discriminants, and also set for internally built
 --       underlying record views to reference its original record type. Record
 --       types that are extensions of types with unknown discriminants do not
@@ -3851,7 +3852,7 @@ 
 --       type, its underlying type is taken.
 
 --    Universal_Aliasing (Flag216) [implementation base type only]
---       Present in all type entities. Set to direct the back-end to avoid
+--       Defined in all type entities. Set to direct the back-end to avoid
 --       any optimizations based on type-based alias analysis for this type.
 --       Indicates that objects of this type can alias objects of any other
 --       types, which guarantees that any objects can be referenced through
@@ -3860,57 +3861,57 @@ 
 --       types designating this type were subject to No_Strict_Aliasing.
 
 --    Unset_Reference (Node16)
---       Present in variables and out parameters. This is normally Empty. It
+--       Defined in variables and out parameters. This is normally Empty. It
 --       is set to point to an identifier that represents a reference to the
 --       entity before any value has been set. Only the first such reference
 --       is identified. This field is used to generate a warning message if
 --       necessary (see Sem_Warn.Check_Unset_Reference).
 
 --    Used_As_Generic_Actual (Flag222)
---       Present in all entities, set if the entity is used as an argument to
+--       Defined in all entities, set if the entity is used as an argument to
 --       a generic instantiation. Used to tune certain warning messages.
 
 --    Uses_Lock_Free (Flag188)
---       Present in protected type entities. Set to True when the Lock Free
+--       Defined in protected type entities. Set to True when the Lock Free
 --       implementation is used for the protected type. This implemenatation is
 --       based on atomic transactions and doesn't require anymore the use of
 --       Protection object (see System.Tasking.Protected_Objects).
 
 --    Uses_Sec_Stack (Flag95)
---       Present in scope entities (blocks,functions, procedures, tasks,
+--       Defined in scope entities (blocks,functions, procedures, tasks,
 --       entries). Set to True when secondary stack is used in this scope and
 --       must be released on exit unless Sec_Stack_Needed_For_Return is set.
 
 --    Warnings_Off (Flag96)
---       Present in all entities. Set if a pragma Warnings (Off, entity-name)
+--       Defined in all entities. Set if a pragma Warnings (Off, entity-name)
 --       is used to suppress warnings for a given entity. It is also used by
 --       the compiler in some situations to kill spurious warnings. Note that
 --       clients should generally not test this flag directly, but instead
 --       use function Has_Warnings_Off.
 
 --    Warnings_Off_Used (Flag236)
---       Present in all entities. Can only be set if Warnings_Off is set. If
+--       Defined in all entities. Can only be set if Warnings_Off is set. If
 --       set indicates that a warning was suppressed by the Warnings_Off flag,
 --       and Unmodified/Unreferenced would not have suppressed the warning.
 
 --    Warnings_Off_Used_Unmodified (Flag237)
---       Present in all entities. Can only be set if Warnings_Off is set and
+--       Defined in all entities. Can only be set if Warnings_Off is set and
 --       Has_Pragma_Unmodified is not set. If set indicates that a warning was
 --       suppressed by the Warnings_Off status but that pragma Unmodified
 --       would also have suppressed the warning.
 
 --    Warnings_Off_Used_Unreferenced (Flag238)
---       Present in all entities. Can only be set if Warnings_Off is set and
+--       Defined in all entities. Can only be set if Warnings_Off is set and
 --       Has_Pragma_Unreferenced is not set. If set indicates that a warning
 --       was suppressed by the Warnings_Off status but that pragma Unreferenced
 --       would also have suppressed the warning.
 
 --    Was_Hidden (Flag196)
---       Present in all entities. Used to save the value of the Is_Hidden
+--       Defined in all entities. Used to save the value of the Is_Hidden
 --       attribute when the limited-view is installed (Ada 2005: AI-217).
 
 --    Wrapped_Entity (Node27)
---       Present in functions and procedures which have been classified as
+--       Defined in functions and procedures which have been classified as
 --       Is_Primitive_Wrapper. Set to the entity being wrapper.
 
 --------------------------------------