Issue #3266339: Fix wrong and missing docblock in CartBlock

   * @param mixed $plugin_definition

   *   The plugin implementation definition.

   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match

   *   The request stack.

   *   The route match.

   * @param \Drupal\Core\Render\RendererInterface $renderer

   *   The renderer.

   */

  public function __construct(array $configuration, $plugin_id, $plugin_definition, RouteMatchInterface $route_match, RendererInterface $renderer) {

    parent::__construct($configuration, $plugin_id, $plugin_definition);