message: Fix the websocket memory leak.
diff: @@ -1396,7 +1396,14 @@ static PHP_METHOD(swoole_http_client_coro, __destruct)
  {
  if (hcc->message_queue)
  {
  - swLinkedList_free(hcc->message_queue);
  + swLinkedList *queue = hcc->message_queue;
  + zval *zframe;
  + while (queue->num != 0)
  + {
  + zframe = (zval *) swLinkedList_shift(queue);
  + efree(zframe);
  + }
  + sw_free(queue);
  }
  efree(hcc);
  swoole_set_property(getThis(), 0, NULL);
  