https://gcc.gnu.org/ml/gcc-patches/2017-10/msg02326.html
	gcc/cp/
	* cp-tree.h (ovl_op_identifier): New.
	(assign_op_identifier, call_op_identifier): Adjust.
	(cp_operator_id, cp_assignment_operator_ide): Delete.
	(SET_OVERLOADED_OPERATOR_CODE): Delete.
	(OVL_OP_INFO): New.
	* call.c (op_error): Use OVL_OP_INFO.
	(build_conditional_expr_1): Use ovl_op_identifier.
	(build_new_op_1): Use OVL_OP_INFO & ovl_op_identifier.
	(build_op_delete_call): Likewise.
	* class.c (type_requires_array_cookie): Use ovl_op_identifier.
	* decl.c (duplicate_decls): Directly copy operator code.
	(builtin_function_1): Do not set operator code.
	(build_library_fn): Directly set operator code.
	(push_cp_library_fn): Use ovl_op_identifier.
	(grok_op_properties): Directly set operator code.
	* decl2.c (maybe_warn_sized_delete): Use ovl_op_identifier.
	* error.c (dump_expr): Use OVL_OP_INFO.
	(op_to_string): Add assop arg. Use OVL_OP_INFO.
	(assop_to_string): Delete.
	(args_to_string): Adjust.
	* init.c (build_new_1): Use ovl_op_identifier.
	* mangle.c (write_unqualified_name): Use OVL_OP_INFO.
	(write_expression): Likewise.
	* method.c (synthesized_method_walk): Use ovl_op_identifier.
	(implicitly_declare_fn): Use assign_op_identifier. Directly set
	operator code.
	* name-lookup.c (get_class_binding): Use assign_op_identifier.
	* parser.c (cp_parser_operator): Use ovl_op_identifier.
	(cp_parser_omp_clause_reduction): Likewise.
	* semantics.c (omp_reduction_id): Likewise.
	* typeck.c (cxx_sizeof_or_alignof_type): Use OVL_OP_INFO.

	libcc1/
	* libcp1plugin.cc (plugin_build_decl): Use ovl_op_identifier.
	Directly set operator code.
	(plugin_build_dependent_expr): Use ovl_op_identifier.

From-SVN: r254267