2007-12-06 Hristian Kirtchev <kirtchev@adacore.com>

	    Ed Schonberg  <schonberg@adacore.com>

	* sem_ch4.adb (Analyze_Selected_Component): Include the requeue
	statement to the list of contexts where a selected component with a
	concurrent tagged type prefix should yield a primitive operation.
	(Find_Primitive_Operation): Handle case of class-wide types.
	(Analyze_Overloaded_Selected_Component): If type of prefix is
	class-wide, use visible components of base type.
	(Resolve_Selected_Component): Ditto.
	(Try_Primitive_Operation, Collect_Generic_Type_Ops): If the type is a
	formal of a generic subprogram. find candidate interpretations by
	scanning the list of generic formal declarations.:
	(Process_Implicit_Dereference_Prefix): If the prefix has an incomplete
	type from a limited_with_clause, and the full view is available, use it
	for subsequent semantic checks.
	(Check_Misspelled_Selector): Use Namet.Sp.Is_Bad_Spelling_Of function
	(Find_Primitive_Operation): New function.
	(Analyze_Overloaded_Selected_Component): insert explicit dereference
	only once if several interpretations of the prefix yield an access type.
	(Try_Object_Operation): Code and comment cleanup.
	(Analyze_Selected_Component): Reorder local variables. Minot comment and
	code reformatting. When the type of the prefix is tagged concurrent, a
	correct interpretation might be available in the primitive and
	class-wide operations of the type.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@130853 138bc75d-0d04-0410-961f-82ee72b054a4

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