call.c (merge_conversion_sequences): Set bad_p and user_conv_p on all of the second conversion sequence.

	* call.c (merge_conversion_sequences): Set bad_p and user_conv_p
	on all of the second conversion sequence.
	(build_user_type_conversion_1): Set bad_p on the ck_user conv.
	(convert_like_real): Handle bad ck_ref_bind with user_conv_p in the
	first section.  Fix loop logic.
	(initialize_reference): Call convert_like for diagnostics when
	we have a (bad) conversion.

From-SVN: r178790