[C++ PATCH] overloaded operator fns [6/N]
https://gcc.gnu.org/ml/gcc-patches/2017-11/msg00019.html
gcc/cp/
* cp-tree.h (assign_op_identifier, call_op_identifier): Use
compressed code.
(struct lang_decl_fn): Use compressed operator code.
(DECL_OVERLOADED_OPERATOR_CODE): Replace with ...
(DECL_OVERLOADED_OPERATOR_CODE_RAW): ... this.
(DECL_OVERLOADED_OPERATOR_CODE_IS): Use it.
* decl.c (duplicate_decls): Use DECL_OVERLOADED_OPERATOR_CODE_RAW.
(build_library_fn): Likewise.
(grok_op_properties): Likewise.
* mangle.c (write_unqualified_name): Likewise.
* method.c (implicitly_declare_fn): Likewise.
* typeck.c (check_return_expr): Use DECL_OVERLOADED_OPERATOR_IS.
libcc1/
* libcp1plugin.cc (plugin_build_decl): Use
DECL_OVERLOADED_OPERATOR_CODE_RAW.
From-SVN: r254314