2009-07-10 Javier Miranda <miranda@adacore.com>

	* exp_ch3.adb (Expand_Freeze_Record_Type): Handle constructors of
	non-tagged record types.

	* sem_prag.adb
	(Process_Import_Or_Interface): Allow the use of "pragma Import (CPP,..)"
	with non-tagged types. Required to import C++ classes that have no
	virtual primitives.
	(Analyze_Pragma): For pragma CPP_Constructor. Allow the use of functions
	returning non-tagged types. For backward compatibility, if the
	constructor returns a class wide type we internally change the
	returned type to the corresponding non class-wide type.

	* sem_aggr.adb
	(Valid_Ancestor_Type): CPP_Constructors code cleanup.
	(Resolve_Extension_Aggregate): CPP_Constructors code cleanup.
	(Resolve_Aggr_Expr): CPP_Constructors code cleanup.
	(Resolve_Record_Aggregate): CPP_Constructors code cleanup.

	* sem_ch3.adb
	(Analyze_Object_Declaration): CPP_Constructors code cleanup.

	* sem_ch5.adb (Analyze_Assignment): CPP_Constructors code cleanup.

	* sem_util.adb (Is_CPP_Constructor_Call): Code cleanup.

	* sem_res.adb (Resolve_Allocator): CPP_Constructors code cleanup.

	* exp_ch4.adb (Expand_Allocator_Expression): CPP_Constructors code
	cleanup.
	
	* exp_aggr.adb (Build_Record_Aggr_Code): CPP_Constructors code clean up.

	* gnat_rm.texi
	(pragma CPP_Class): Document that it can be used now with non-tagged
	record types.
	(pragma CPP_Constructor): Document that it can be used now with
	functions returning specific types. For backward compatibility
	we also support functions returning class-wide types.

	* gnat_ugn.texi
	(Interfacing with C++ constructors): Update the examples to incorporate
	the new syntax in which the functions used to import C++ constructors
	return specific types.
	(Interfacing with C++ at the Class Level): Update the examples to
	incorporate the new syntax in which the functions used to import
	C++ constructors return specific types.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@149466 138bc75d-0d04-0410-961f-82ee72b054a4

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