gcc/cp/ChangeLog:
	PR c++/46170
	PR c++/46162
	* pt.c (check_valid_ptrmem_cst_expr): Add a complain parameter to
	control diagnostic.
	(convert_nontype_argument, convert_nontype_argument): Pass the
	complain parameter down to check_valid_ptrmem_cst_expr.

gcc/testsuite/ChangeLog:
	PR c++/46170
	PR c++/46162
	* g++.dg/template/sfinae26.C: New test.
	* g++.dg/template/sfinae27.C: Likewise.

From-SVN: r166181