2016-06-16  Hristian Kirtchev  <kirtchev@adacore.com>

	* atree.ads, atree.adb (Elist29): New routine.
	(Set_Elist29): New routine.
	* atree.h New definition for Elist29.
	* einfo.adb Subprograms_For_Type is now an Elist rather than
	a node. Has_Invariants is now a synthesized attribute
	and does not require a flag. Has_Own_Invariants
	is now Flag232. Has_Inherited_Invariants is
	Flag291. Is_Partial_Invariant_Procedure is Flag292.
	(Default_Init_Cond_Procedure): Reimplemented.
	(Has_Inherited_Invariants): New routine.
	(Has_Invariants): Reimplemented.
	(Has_Own_Invariants): New routine.
	(Invariant_Procedure): Reimplemented.
	(Is_Partial_Invariant_Procedure): New routine.
	(Partial_Invariant_Procedure): Reimplemented.
	(Predicate_Function): Reimplemented.
	(Predicate_Function_M): Reimplemented.
	(Set_Default_Init_Cond_Procedure): Reimplemented.
	(Set_Has_Inherited_Invariants): New routine.
	(Set_Has_Invariants): Removed.
	(Set_Has_Own_Invariants): New routine.
	(Set_Invariant_Procedure): Reimplemented.
	(Set_Is_Partial_Invariant_Procedure): New routine.
	(Set_Partial_Invariant_Procedure): Reimplemented.
	(Set_Predicate_Function): Reimplemented.
	(Set_Predicate_Function_M): Reimplemented.
	(Set_Subprograms_For_Type): Reimplemented.
	(Subprograms_For_Type): Reimplemented.
	(Write_Entity_Flags): Output Flag232 and Flag291.
	* einfo.ads Add new attributes Has_Inherited_Invariants
	Has_Own_Invariants Is_Partial_Invariant_Procedure
	Partial_Invariant_Procedure Change the documentation
	of attributes Has_Inheritable_Invariants Has_Invariants
	Invariant_Procedure Is_Invariant_Procedure Subprograms_For_Type
	(Has_Inherited_Invariants): New routine along with pragma Inline.
	(Has_Own_Invariants): New routine along with pragma Inline.
	(Is_Partial_Invariant_Procedure): New routine along with pragma Inline.
	(Partial_Invariant_Procedure): New routine.
	(Set_Has_Inherited_Invariants): New routine along with pragma Inline.
	(Set_Has_Invariants): Removed along with pragma Inline.
	(Set_Has_Own_Invariants): New routine along with pragma Inline.
	(Set_Is_Partial_Invariant_Procedure): New routine
	along with pragma Inline.
	(Set_Partial_Invariant_Procedure): New routine.
	(Set_Subprograms_For_Type): Update the signature.
	(Subprograms_For_Type): Update the signature.
	* exp_ch3.adb Remove with and use clauses for Sem_Ch13.
	(Build_Array_Invariant_Proc): Removed.
	(Build_Record_Invariant_Proc): Removed.
	(Freeze_Type): Build the body of the invariant procedure.
	(Insert_Component_Invariant_Checks): Removed.
	* exp_ch7.adb Add with and use clauses for Sem_Ch6, Sem_Ch13,
	and Stringt.
	(Build_Invariant_Procedure_Body): New routine.
	(Build_Invariant_Procedure_Declaration): New routine.
	* exp_ch7.ads (Build_Invariant_Procedure_Body): New routine.
	(Build_Invariant_Procedure_Declaration): New routine.
	* exp_ch9.adb (Build_Corresponding_Record): Do not propagate
	attributes related to invariants to the corresponding record
	when building the corresponding record. This is done by
	Build_Invariant_Procedure_Declaration.
	* exp_util.adb (Make_Invariant_Call): Reimplemented.
	* freeze.adb (Freeze_Array_Type): An array type requires an
	invariant procedure when its component type has invariants.
	(Freeze_Record_Type): A record type requires an invariant
	procedure when at least one of its components has an invariant.
	* sem_ch3.adb (Analyze_Private_Extension_Declaration): Inherit
	invariant-related attributes.
	(Analyze_Subtype_Declaration):
	Inherit invariant-related attributes.
	(Build_Derived_Record_Type): Inherit invariant-related attributes.
	(Check_Duplicate_Aspects): Reimplemented.
	(Get_Partial_View_Aspect): New routine.
	(Process_Full_View): Inherit invariant-related attributes. Reimplement
	the check on hidden inheritance of class-wide invariants.
	(Remove_Default_Init_Cond_Procedure): Reimplemented.
	* sem_ch6.adb (Analyze_Subprogram_Specification): Do not modify
	the controlling type for an invariant procedure declaration
	or body.
	(Is_Invariant_Procedure_Or_Body): New routine.
	* sem_ch7.adb (Analyze_Package_Specification): Build the partial
	invariant body in order to preanalyze and resolve all invariants
	of a private type at the end of the visible declarations. Build
	the full invariant body in order to preanalyze and resolve
	all invariants of a private type's full view at the end of
	the private declarations.
	(Preserve_Full_Attributes): Inherit invariant-related attributes.
	* sem_ch9.adb (Analyze_Protected_Type_Declaration): Ensure that
	aspects are analyzed with the proper view when the protected type
	is a completion of a private type. Inherit invariant-related attributes.
	(Analyze_Task_Type_Declaration): Ensure that
	aspects are analyzed with the proper view when the task type
	is a completion of a private type. Inherit invariant-related
	attributes.
	* sem_ch13.adb Remove with and use clauses for Stringt.
	(Build_Invariant_Procedure_Declaration): Removed.
	(Build_Invariant_Procedure): Removed.
	(Freeze_Entity_Checks): Do not build the body of the invariant
	procedure here.
	The body is built when the type is frozen in Freeze_Type.
	(Inherit_Aspects_At_Freeze_Point): Do not inherit any attributes
	related to invariants here because this leads to erroneous
	inheritance.
	(Replace_Node): Rename to Replace_Type_Ref.
	* sem_ch13.ads (Build_Invariant_Procedure_Declaration): Removed.
	(Build_Invariant_Procedure): Removed.
	* sem_prag.adb Add with and use clauses for Exp_Ch7.
	(Analyze_Pragma): Reimplement the analysis of pragma Invariant.
	* sem_res.adb (Resolve_Actuals): Emit a specialized error when
	the context is an invariant.
	* sem_util.adb (Get_Views): New routine.
	(Incomplete_Or_Partial_View): Consider generic packages when
	examining declarations.
	(Inspect_Decls): Consider full type
	declarations because they may denote a derivation from a
	private type.
	(Propagate_Invariant_Attributes): New routine.
	* sem_util.ads (Get_Views): New routine.
	(Propagate_Invariant_Attributes): New routine.

2016-06-16  Arnaud Charlet  <charlet@adacore.com>

	* pprint.adb (Expression_Image): Add better handling of UCs,
	we don't want to strip them all for clarity.

From-SVN: r237596