first commit

core/modules/user/user.views.inc

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+<?php
+
+/**
+ * @file
+ * Provide views data for user.module.
+ */
+
+/**
+ * Implements hook_views_plugins_argument_validator_alter().
+ */
+function user_views_plugins_argument_validator_alter(array &$plugins) {
+  $plugins['entity:user']['title'] = t('User ID');
+  $plugins['entity:user']['class'] = 'Drupal\user\Plugin\views\argument_validator\User';
+  $plugins['entity:user']['provider'] = 'user';
+}