PR c++/6440
	* pt.c (maybe_process_partial_specialization): Handle
	member class template when enclosing class template is
	explicit specialized.
	(most_general_template): Stop looking when DECL is already
	specialized.

	* g++.dg/template/spec7.C: New test.
	* g++.dg/template/spec8.C: Likewise.

From-SVN: r64395