message: Fix operator| for Module::OutputFlags under clang
diff: @@ -208,7 +208,7 @@ inline Module::OutputFlags& operator|=(Module::OutputFlags& lhs, const __underly
  inline Module::OutputFlags& operator&=(Module::OutputFlags& lhs, const __underlying_type(Module::OutputFlags) rhs) {
  return lhs = (Module::OutputFlags)((__underlying_type(Module::OutputFlags))lhs & rhs);
  }
  -inline constexpr Module::OutputFlags operator|(const Module::OutputFlags lhs, const __underlying_type(Module::OutputFlags) rhs) {
  +inline Module::OutputFlags operator|(const Module::OutputFlags lhs, const Module::OutputFlags rhs) {
  return (Module::OutputFlags)((__underlying_type(Module::OutputFlags))lhs | rhs);
  }
  