* cp-tree.h (NAMESPACE_ABI_TAG): New.
	* name-lookup.c (handle_namespace_attrs): Set it.
	* class.c (check_tag): Split out from find_abi_tags_r.
	(find_abi_tags_r): Also check namespace tags.
	(mark_type_abi_tags): Also mark namespace tags.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@218684 138bc75d-0d04-0410-961f-82ee72b054a4
	N3922
	* pt.c (do_auto_deduction): In direct-init context, { x } deduces
	from x.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@218685 138bc75d-0d04-0410-961f-82ee72b054a4