2007-08-16 Gary Dismukes <dismukes@adacore.com>

	* cstand.adb (Create_Standard): Create an entity for a zero-sized type
	associated with Standard_Debug_Renaming_Type, to be used as the type of
	the special variables whose names provide debugger encodings for
	renaming declarations.

	* einfo.ads, einfo.adb (Debug_Renaming_Link): Change to return Node25.
	(Set_Debug_Renaming_Link): Change to set Node25.
	(Write_Field13_Name): Remove case for E_Enumeration_Literal.
	(Write_Field25_Name): Add case for E_Variable to output
	"Debug_Renaming_Link".
	(Write_Field23_Name): Correct the output string for "Limited_View".

	* exp_dbug.adb: Add with and use of Tbuild.
	(Debug_Renaming_Declaration): Replace creation of an enumeration type
	and literal with creation of a variable of type
	Standard_Debug_Renaming_Type whose name encodes both the renamed object
	and the entity of the renaming declaration.
	(Qualify_Entity_Name): Add the delayed qualification of the entity name
	part of the name of a variable that has a Debug_Renaming_Link.

	* stand.ads (Standard_Debug_Renaming_Type): New Entity_Id denoting a
	special type to be associated with variables that provide debugger
	encodings for renaming declarations.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@127537 138bc75d-0d04-0410-961f-82ee72b054a4

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