re PR c++/52465 (g++ rejects valid code with in-class using declaration)

re PR c++/52465 (g++ rejects valid code with in-class using declaration)

gcc/testsuite/ChangeLog

2012-04-09  Fabien Chêne  <fabien@gcc.gnu.org>

	PR c++/52465
	* g++.dg/lookup/using52.C: New.

gcc/cp/ChangeLog

2012-04-09  Fabien Chêne  <fabien@gcc.gnu.org>

	PR c++/52465
	* parser.c (cp_parser_class_name): Call strip_using_decl and
	return the target decl.
	* name-lookup.c (strip_using_decl): Returns NULL_TREE if the decl
	to be stripped is NULL_TREE.
	(qualify_lookup): Call strip_using_decl and perform some checks on
	the target decl.

From-SVN: r186355