message: Fine down the http coro properties declare.
diff: @@ -491,7 +491,9 @@ void swoole_http_client_coro_init(int module_number TSRMLS_DC)
  zend_declare_property_null(swoole_http_client_coro_class_entry_ptr, SW_STRL("requestHeaders")-1, ZEND_ACC_PUBLIC TSRMLS_CC);
  zend_declare_property_null(swoole_http_client_coro_class_entry_ptr, SW_STRL("requestBody")-1, ZEND_ACC_PUBLIC TSRMLS_CC);
  zend_declare_property_null(swoole_http_client_coro_class_entry_ptr, SW_STRL("uploadFiles")-1, ZEND_ACC_PUBLIC TSRMLS_CC);
  + zend_declare_property_null(swoole_http_client_coro_class_entry_ptr, SW_STRL("downloadFile")-1, ZEND_ACC_PUBLIC TSRMLS_CC);
  zend_declare_property_null(swoole_http_client_coro_class_entry_ptr, SW_STRL("headers")-1, ZEND_ACC_PUBLIC TSRMLS_CC);
  + zend_declare_property_null(swoole_http_client_coro_class_entry_ptr, SW_STRL("set_cookie_headers")-1, ZEND_ACC_PUBLIC TSRMLS_CC);
  zend_declare_property_null(swoole_http_client_coro_class_entry_ptr, SW_STRL("cookies")-1, ZEND_ACC_PUBLIC TSRMLS_CC);
  zend_declare_property_null(swoole_http_client_coro_class_entry_ptr, SW_STRL("body")-1, ZEND_ACC_PUBLIC TSRMLS_CC);
  