message: fix compatibility bug
diff: @@ -414,7 +414,7 @@ static PHP_METHOD(swoole_coroutine_util, call_user_func_array)
  static PHP_METHOD(swoole_coroutine_util, suspend)
  {
  char *id;
  - int id_len;
  + zend_size_t id_len;
  if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s",&id, &id_len) == FAILURE)
  {
  @@ -526,7 +526,7 @@ static PHP_METHOD(swoole_coroutine_util, cli_wait) {
  static PHP_METHOD(swoole_coroutine_util, resume)
  {
  char *id;
  - int id_len;
  + zend_size_t id_len;
  if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &id, &id_len) == FAILURE)
  {
  