diff -u b/core/modules/menu_link/js/menu_link.js /dev/null
--- b/core/modules/menu_link/js/menu_link.js
+++ /dev/null
@@ -1,91 +0,0 @@
-/**
- * @file
- * Menu UI behaviors.
- */
-
-(function ($, Drupal) {
-
-  'use strict';
-
-  /**
-   * Set a summary on the menu link form.
-   *
-   * @type {Drupal~behavior}
-   *
-   * @prop {Drupal~behaviorAttach} attach
-   *   Find the form and call `drupalSetSummary` on it.
-   */
-  Drupal.behaviors.menuLinkDetailsSummaries = {
-    attach: function (context) {
-      $(context).find('.menu-link-form').drupalSetSummary(function (context) {
-        var $context = $(context);
-        if ($context.find('.js-form-item-menu-enabled input').is(':checked')) {
-          return Drupal.checkPlain($context.find('.js-form-item-menu-title input').val());
-        }
-        else {
-          return Drupal.t('Not in menu');
-        }
-      });
-    }
-  };
-
-  /**
-   * Automatically fill in a menu link title, if possible.
-   *
-   * @type {Drupal~behavior}
-   *
-   * @prop {Drupal~behaviorAttach} attach
-   *   Attaches change and keyup behavior for automatically filling out menu
-   *   link titles.
-   */
-  Drupal.behaviors.menuLinkLinkAutomaticTitle = {
-    attach: function (context) {
-      var $context = $(context);
-      $context.find('.menu-link-form').each(function () {
-        var $this = $(this);
-        // Try to find menu settings widget elements as well as a 'title' field
-        // in the form, but play nicely with user permissions and form
-        // alterations.
-        var $checkbox = $this.find('.js-form-item-menu-enabled input');
-        var $link_title = $context.find('.js-form-item-menu-title input');
-        var $title = $this.closest('form').find('.js-form-item-title-0-value input');
-        // Bail out if we do not have all required fields.
-        if (!($checkbox.length && $link_title.length && $title.length)) {
-          return;
-        }
-        // If there is a link title already, mark it as overridden. The user
-        // expects that toggling the checkbox twice will take over the node's
-        // title.
-        if ($checkbox.is(':checked') && $link_title.val().length) {
-          $link_title.data('menuLinkAutomaticTitleOverridden', true);
-        }
-        // Whenever the value is changed manually, disable this behavior.
-        $link_title.on('keyup', function () {
-          $link_title.data('menuLinkAutomaticTitleOverridden', true);
-        });
-        // Global trigger on checkbox (do not fill-in a value when disabled).
-        $checkbox.on('change', function () {
-          if ($checkbox.is(':checked')) {
-            if (!$link_title.data('menuLinkAutomaticTitleOverridden')) {
-              $link_title.val($title.val());
-            }
-          }
-          else {
-            $link_title.val('');
-            $link_title.removeData('menuLinkAutomaticTitleOverridden');
-          }
-          $checkbox.closest('.vertical-tabs-pane').trigger('summaryUpdated');
-          $checkbox.trigger('formUpdated');
-        });
-        // Take over any title change.
-        $title.on('keyup', function () {
-          if (!$link_title.data('menuLinkAutomaticTitleOverridden') && $checkbox.is(':checked')) {
-            $link_title.val($title.val());
-            $link_title.val($title.val()).trigger('formUpdated');
-          }
-        });
-      });
-    }
-  };
-
-})(jQuery, Drupal);
diff -u b/core/modules/menu_link/src/Tests/MenuLinkFieldStandardTest.php b/core/modules/menu_link/src/Tests/MenuLinkFieldStandardTest.php
--- b/core/modules/menu_link/src/Tests/MenuLinkFieldStandardTest.php
+++ b/core/modules/menu_link/src/Tests/MenuLinkFieldStandardTest.php
@@ -39,12 +39,12 @@
    */
   public function testLinkEdit() {
     // Ensure that the field_menu link got created.
-    $node = $this->drupalCreateNode(array(
+    $node = $this->drupalCreateNode([
       'type' => 'article',
       'title' => 'Foobar',
       'promote' => 1,
       'status' => 1,
-    ));
+    ]);
     $this->drupalGet("node/{$node->id()}/edit");
     $this->assertNoFieldChecked('edit-field-menu-0-enabled');
     $title = $this->randomString();
diff -u b/core/modules/system/src/Tests/Menu/BreadcrumbTest.php b/core/modules/system/src/Tests/Menu/BreadcrumbTest.php
--- b/core/modules/system/src/Tests/Menu/BreadcrumbTest.php
+++ b/core/modules/system/src/Tests/Menu/BreadcrumbTest.php
@@ -187,7 +187,7 @@
       $node2 = $this->drupalCreateNode([
         'type' => $type,
         'title' => $title,
-      ));
+      ]);
       $node2->menu->title = 'Parent ' . $title;
       $node2->menu->description = '';
       $node2->menu->menu_name = $menu;
diff -u b/core/profiles/standard/tests/src/Functional/StandardTest.php b/core/profiles/standard/tests/src/Functional/StandardTest.php
--- b/core/profiles/standard/tests/src/Functional/StandardTest.php
+++ b/core/profiles/standard/tests/src/Functional/StandardTest.php
@@ -103,12 +103,12 @@
     $this->assertNoText('Then she picked out two somebodies, Sally and me');
 
     // Ensure that the field_menu link got created.
-    $node = $this->drupalCreateNode(array(
+    $node = $this->drupalCreateNode([
       'type' => 'page',
       'title' => 'Foobar',
       'promote' => 1,
       'status' => 1,
-    ));
+    ]);
     $this->drupalGet("node/{$node->id()}/edit");
     $this->assertFieldById('edit-field-menu-0-enabled', FALSE);
 
only in patch2:
unchanged:
--- /dev/null
+++ b/core/modules/menu_link/js/menu_link.js
@@ -0,0 +1,91 @@
+/**
+ * @file
+ * Menu UI behaviors.
+ */
+
+(function ($, Drupal) {
+
+  'use strict';
+
+  /**
+   * Set a summary on the menu link form.
+   *
+   * @type {Drupal~behavior}
+   *
+   * @prop {Drupal~behaviorAttach} attach
+   *   Find the form and call `drupalSetSummary` on it.
+   */
+  Drupal.behaviors.menuLinkDetailsSummaries = {
+    attach: function (context) {
+      $(context).find('.menu-link-form').drupalSetSummary(function (context) {
+        var $context = $(context);
+        if ($context.find('.js-form-item-menu-enabled input').is(':checked')) {
+          return Drupal.checkPlain($context.find('.js-form-item-menu-title input').val());
+        }
+        else {
+          return Drupal.t('Not in menu');
+        }
+      });
+    }
+  };
+
+  /**
+   * Automatically fill in a menu link title, if possible.
+   *
+   * @type {Drupal~behavior}
+   *
+   * @prop {Drupal~behaviorAttach} attach
+   *   Attaches change and keyup behavior for automatically filling out menu
+   *   link titles.
+   */
+  Drupal.behaviors.menuLinkLinkAutomaticTitle = {
+    attach: function (context) {
+      var $context = $(context);
+      $context.find('.menu-link-form').each(function () {
+        var $this = $(this);
+        // Try to find menu settings widget elements as well as a 'title' field
+        // in the form, but play nicely with user permissions and form
+        // alterations.
+        var $checkbox = $this.find('.js-form-item-menu-enabled input');
+        var $link_title = $context.find('.js-form-item-menu-title input');
+        var $title = $this.closest('form').find('.js-form-item-title-0-value input');
+        // Bail out if we do not have all required fields.
+        if (!($checkbox.length && $link_title.length && $title.length)) {
+          return;
+        }
+        // If there is a link title already, mark it as overridden. The user
+        // expects that toggling the checkbox twice will take over the node's
+        // title.
+        if ($checkbox.is(':checked') && $link_title.val().length) {
+          $link_title.data('menuLinkAutomaticTitleOverridden', true);
+        }
+        // Whenever the value is changed manually, disable this behavior.
+        $link_title.on('keyup', function () {
+          $link_title.data('menuLinkAutomaticTitleOverridden', true);
+        });
+        // Global trigger on checkbox (do not fill-in a value when disabled).
+        $checkbox.on('change', function () {
+          if ($checkbox.is(':checked')) {
+            if (!$link_title.data('menuLinkAutomaticTitleOverridden')) {
+              $link_title.val($title.val());
+            }
+          }
+          else {
+            $link_title.val('');
+            $link_title.removeData('menuLinkAutomaticTitleOverridden');
+          }
+          $checkbox.closest('.vertical-tabs-pane').trigger('summaryUpdated');
+          $checkbox.trigger('formUpdated');
+        });
+        // Take over any title change.
+        $title.on('keyup', function () {
+          if (!$link_title.data('menuLinkAutomaticTitleOverridden') && $checkbox.is(':checked')) {
+            $link_title.val($title.val());
+            $link_title.val($title.val()).trigger('formUpdated');
+          }
+        });
+      });
+    }
+  };
+
+})(jQuery, Drupal);