2009-04-24 Emmanuel Briot <briot@adacore.com>

	* prj.adb, prj.ads, prj-nmsc.adb (Check_File, Record_Ada_Source,
	Add_Source): merge some code between those. In particular change where
	file normalization is done to avoid a few extra calls to
	Canonicalize_File_Name. This also removes the need for passing
	Current_Dir in a number of subprograms.

2009-04-24  Bob Duff  <duff@adacore.com>

	* lib-load.adb (Make_Instance_Unit): In the case where In_Main is
	False, assign the correct unit to the Cunit field of the new table
	entry. We want the spec unit, not the body unit.

	* rtsfind.adb (Make_Unit_Name, Maybe_Add_With): Simplify calling
	interface for these.
	(Maybe_Add_With): Check whether we're trying to a with on the current
	unit, and avoid creating such directly self-referential with clauses.
	(Text_IO_Kludge): Add implicit with's for the generic pseudo-children of
	[[Wide_]Wide_]Text_IO. These are needed for Walk_Library_Items,
	and matches existing comments in the spec.

	* sem.adb (Walk_Library_Items): Add various special cases to make the
	assertions pass.

	* sem_ch12.adb (Build_Instance_Compilation_Unit_Nodes): Use Body_Cunit
	instead of Parent (N), for uniformity.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@146724 138bc75d-0d04-0410-961f-82ee72b054a4

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