* tree.c (type_has_nontrivial_copy_init): True for classes with only
	deleted copy/move ctors.
	(remember_deleted_copy, maybe_warn_parm_abi): New.
	* decl.c (require_complete_types_for_parms, check_function_type):
	Call maybe_warn_parm_abi.
	* call.c (convert_for_arg_passing, build_cxx_call): Likewise.

From-SVN: r247757