2005-06-14 Javier Miranda <miranda@adacore.com>

	    Jose Ruiz  <ruiz@adacore.com>
	    Robert Dewar  <dewar@adacore.com>
	    Ed Schonberg  <schonberg@adacore.com>

	* lib-load.ads, lib-load.adb (Load_Unit): Addition of a new parameter
	that indicates if we are parsing a compilation unit found in a
	limited-with clause.
	It is use to avoid the circularity check.

	* par.ads, par.adb (Par): Addition of a new parameter to indicate if
	we are parsing a compilation unit found in a limited-with clause. This
	is use to avoid the circularity check.

	* par-load.adb (Load): Indicate Lib.Load_Unit if we are loading the
	unit as a consequence of parsing a limited-with clause. This is used
	to avoid the circularity check.

	* sem_ch10.adb: Suppress Ada 2005 unit warning if -gnatwY used
	(Analyze_Context): Limited-with clauses are now allowed
	in more compilation units.
	(Analyze_Subunit_Context, Check_Parent): Protect the frontend
	againts previously reported critical errors in context clauses
	(Install_Limited_Withed_Unit): Code cleanup plus static detection
	of two further errors: renamed subprograms and renamed packages
	are not allowed in limited with clauses.
	(Install_Siblings): Do not install private_with_clauses on the package
	declaration for a non-private child unit.
	(Re_Install_Parents): When a parent of the subunit is reinstalled,
	reset visibility of child units properly.
	(Install_Withed_Unit): When a child unit appears in a with_clause of its
	parent, it is immediately visible.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101045 138bc75d-0d04-0410-961f-82ee72b054a4

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