PR c++/43951

	PR c++/43951
	* init.c (diagnose_uninitialized_cst_or_ref_member_1): Returns the
	error count. Emit errors only if compain is true.
	(build_new_1): Do not return error_mark_node if
	diagnose_uninitialized_cst_or_ref_member_1 does not diagnose any
	errors. Delay the check for user-provided constructor.
	(perform_member_init): Adjust.
	* cp-tree.h (diagnose_uninitialized_cst_or_ref_member): Change the
	prototype.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@159158 138bc75d-0d04-0410-961f-82ee72b054a4