DR 1170
	PR c++/51213
	* semantics.c (perform_access_checks): Add complain parm, return bool.
	(perform_deferred_access_checks): Likewise.
	(perform_or_defer_access_check): Likewise.
	(speculative_access_check): Remove.
	* call.c (enforce_access): Add complain parm, return bool.
	* decl.c, friend.c, class.c, init.c, parser.c: Adjust callers.
	* search.c: Adjust callers.
	* cp-tree.h (TINFO_RECHECK_ACCESS_P): New macro.
	(FNDECL_RECHECK_ACCESS_P): New macro.
	* method.c (synthesized_method_walk): Stop deferring access checks.
	* pt.c (recheck_decl_substitution): New.
	(instantiate_template_1): Set and check FNDECL_RECHECK_ACCESS_P.

Co-Authored-By: Jason Merrill <jason@redhat.com>

From-SVN: r189639