2006-02-13 Javier Miranda <miranda@adacore.com>

	    Gary Dismukes  <dismukes@adacore.com>
	    Robert Dewar  <dewar@adacore.com>

	* restrict.ads (No_Dispatching_Calls): New GNAT restriction.

	* sem_disp.adb (Override_Dispatching_Operation): Traverse the list of
	aliased entities to look for the overriden abstract interface
	subprogram.
	(Is_Interface_Subprogram): Complete documentation.
	(Check_Dispatching_Operation): Do not generate code to register the
	operation in the dispatch table if the source is compiled with
	restriction No_Dispatching_Calls.
	(Override_Dispatching_Operation): Check for illegal attempt to override
	No_Return procedure with procedure that is not No_Return
	(Check_Dispatching_Call): Suppress the check for an abstract operation
	when the original node of an actual is a tag-indeterminate attribute
	call, since the attribute, which must be 'Input, can never be abstract.
	(Is_Tag_Indeterminate): Handle checking of tag indeterminacy of a
	call to the Input attribute (even when rewritten).
	(Propagate_Tag): Augment comment to indicate the possibility of a call
	to an Input attribute.

	* sem_disp.ads (Override_Dispatching_Operation): Moved to spec to allow
	calling it from Exp_Ch3.Make_Controlling_Function_Wrappers.

	* s-rident.ads: (No_Dispatching_Calls): New GNAT restriction.
	No_Wide_Characters is no longer partition-wide
	No_Implementation_Attributes/Pragmas are now Ada 2005 (AI-257)
	rather than GNAT



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111086 138bc75d-0d04-0410-961f-82ee72b054a4

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