re PR c++/42748 (warnings about 'mangling of 'va_list' has changed in GCC 4.4' not suppressed in sytem headers)

2010-02-27  Mark Mitchell  <mark@codesourcery.com>

	PR c++/42748
	* cp-tree.h (push_tinst_level): Declare.
	(pop_tinst_level): Likewise.
	* pt.c (push_tinst_level): Give it external linkage.
	(pop_tinst_level): Likewise.
	* mangle.c (mangle_decl_string): Set the source location to that
	of the decl while mangling.

2010-02-27  Mark Mitchell  <mark@codesourcery.com>

	PR c++/42748
	* g++.dg/abi/mangle11.C: Adjust mangling warning locations.
	* g++.dg/abi/mangle12.C: Likewise.
	* g++.dg/abi/mangle20-2.C: Likewise.
	* g++.dg/abi/mangle17.C: Likewise.
	* g++.dg/template/cond2.C: Likewise.
	* g++.dg/template/pr35240.C: Likewise.

From-SVN: r157124