class.c (check_bases): Propagate non-literality.

class.c (check_bases): Propagate non-literality.

	* class.c (check_bases): Propagate non-literality.
	(check_field_decls): Likewise.
	(finalize_literal_type_property): New.
	(check_bases_and_members): Call it.
	* cp-tree.h (TYPE_HAS_CONSTEXPR_CTOR): New.
	(lang_type_class): Add has_constexpr_ctor field.
	(DECL_DECLARED_CONSTEXPR_P): Strip template.
	* decl.c (grok_special_member_properties): Set
	TYPE_HAS_CONSTEXPR_CTOR.

Co-Authored-By: Jason Merrill <jason@redhat.com>
From-SVN: r166012