PR c++/22136
	* name-lookup.c (do_class_using_decl): Don't try to look up base
	classes in templates with dependent base types.
	PR c++/22136
	* g++.dg/template/using10.C: New test.
	* g++.dg/temlpate/using11.C: Likewise.
	* g++.dg/inherit/using5.C: Tweak error messages.

From-SVN: r110017