diff --git a/core/includes/menu.inc b/core/includes/menu.inc
index 89d489120b..ed6365d142 100644
--- a/core/includes/menu.inc
+++ b/core/includes/menu.inc
@@ -10,74 +10,8 @@
  * @{
  */
 
-use Drupal\Component\Render\FormattableMarkup;
 use Drupal\Core\Render\Element;
 
-/**
- * Prepares variables for single local task link templates.
- *
- * Default template: menu-local-task.html.twig.
- *
- * @param array $variables
- *   An associative array containing:
- *   - element: A render element containing:
- *     - #link: A menu link array with 'title', 'url', and (optionally)
- *       'localized_options' keys.
- *     - #active: A boolean indicating whether the local task is active.
- */
-function template_preprocess_menu_local_task(&$variables) {
-  $link = $variables['element']['#link'];
-  $link += [
-    'localized_options' => [],
-  ];
-  $link_text = $link['title'];
-
-  if (!empty($variables['element']['#active'])) {
-    $variables['is_active'] = TRUE;
-
-    // Add text to indicate active tab for non-visual users.
-    $active = new FormattableMarkup('<span class="visually-hidden">@label</span>', ['@label' => t('(active tab)')]);
-    $link_text = t('@local-task-title@active', ['@local-task-title' => $link_text, '@active' => $active]);
-  }
-
-  $link['localized_options']['set_active_class'] = TRUE;
-
-  $variables['link'] = [
-    '#type' => 'link',
-    '#title' => $link_text,
-    '#url' => $link['url'],
-    '#options' => $link['localized_options'],
-  ];
-}
-
-/**
- * Prepares variables for single local action link templates.
- *
- * Default template: menu-local-action.html.twig.
- *
- * @param array $variables
- *   An associative array containing:
- *   - element: A render element containing:
- *     - #link: A menu link array with 'title', 'url', and (optionally)
- *       'localized_options' keys.
- */
-function template_preprocess_menu_local_action(&$variables) {
-  $link = $variables['element']['#link'];
-  $link += [
-    'localized_options' => [],
-  ];
-  $link['localized_options']['attributes']['class'][] = 'button';
-  $link['localized_options']['attributes']['class'][] = 'button-action';
-  $link['localized_options']['set_active_class'] = TRUE;
-
-  $variables['link'] = [
-    '#type' => 'link',
-    '#title' => $link['title'],
-    '#options' => $link['localized_options'],
-    '#url' => $link['url'],
-  ];
-}
-
 /**
  * Returns an array containing the names of system-defined (default) menus.
  */
diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index 13456c762d..efdf01718c 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -6,6 +6,7 @@
  */
 
 use Drupal\Component\Gettext\PoItem;
+use Drupal\Component\Render\FormattableMarkup;
 use Drupal\Core\Extension\Dependency;
 use Drupal\Component\Render\PlainTextOutput;
 use Drupal\Component\Utility\UrlHelper;
@@ -1424,3 +1425,68 @@ function system_element_info_alter(&$type) {
     $type['page']['#theme_wrappers']['off_canvas_page_wrapper'] = ['#weight' => -1000];
   }
 }
+
+/**
+ * Prepares variables for single local task link templates.
+ *
+ * Default template: menu-local-task.html.twig.
+ *
+ * @param array $variables
+ *   An associative array containing:
+ *   - element: A render element containing:
+ *     - #link: A menu link array with 'title', 'url', and (optionally)
+ *       'localized_options' keys.
+ *     - #active: A boolean indicating whether the local task is active.
+ */
+function template_preprocess_menu_local_task(&$variables) {
+  $link = $variables['element']['#link'];
+  $link += [
+    'localized_options' => [],
+  ];
+  $link_text = $link['title'];
+
+  if (!empty($variables['element']['#active'])) {
+    $variables['is_active'] = TRUE;
+
+    // Add text to indicate active tab for non-visual users.
+    $active = new FormattableMarkup('<span class="visually-hidden">@label</span>', ['@label' => t('(active tab)')]);
+    $link_text = t('@local-task-title@active', ['@local-task-title' => $link_text, '@active' => $active]);
+  }
+
+  $link['localized_options']['set_active_class'] = TRUE;
+
+  $variables['link'] = [
+    '#type' => 'link',
+    '#title' => $link_text,
+    '#url' => $link['url'],
+    '#options' => $link['localized_options'],
+  ];
+}
+
+/**
+ * Prepares variables for single local action link templates.
+ *
+ * Default template: menu-local-action.html.twig.
+ *
+ * @param array $variables
+ *   An associative array containing:
+ *   - element: A render element containing:
+ *     - #link: A menu link array with 'title', 'url', and (optionally)
+ *       'localized_options' keys.
+ */
+function template_preprocess_menu_local_action(&$variables) {
+  $link = $variables['element']['#link'];
+  $link += [
+    'localized_options' => [],
+  ];
+  $link['localized_options']['attributes']['class'][] = 'button';
+  $link['localized_options']['attributes']['class'][] = 'button-action';
+  $link['localized_options']['set_active_class'] = TRUE;
+
+  $variables['link'] = [
+    '#type' => 'link',
+    '#title' => $link['title'],
+    '#options' => $link['localized_options'],
+    '#url' => $link['url'],
+  ];
+}