call.c (add_template_candidate_real): Handle member template constructors for classes with virtual bases.

	* call.c (add_template_candidate_real): Handle member template
	constructors for classes with virtual bases.
	(build_user_type_conversion_1): Use in_charge_arg_for_name.
	(build_new_method_call): Use DECL_NONSTATIC_MEMBER_FUNCTION_P.

	* ir.texi: Update thunk documentation.

From-SVN: r34284