Issue #1783028 by dawehner: Fixed Add a standard implementation of arguments.

lib/Drupal/views/Plugin/views/argument/Standard.php

+<?php
+
+/**
+ * @file
+ * Definition of Drupal\views\Plugin\views\argument\Standard.
+ */
+
+namespace Drupal\views\Plugin\views\argument;
+
+use Drupal\Core\Annotation\Plugin;
+
+/**
+ * Default implementation of the base argument plugin.
+ *
+ * @ingroup views_argument_handlers
+ *
+ * @Plugin(
+ *   id = "standard"
+ * )
+ */
+class Standard extends ArgumentPluginBase {
+
+}