Issue #3062757 by voleger, Berdir, andypost: Remove deprecated legacy include files from Drupal 9

(cherry picked from commit 91f4c1ed)

core/lib/Drupal/Component/FileSecurity/FileSecurity.php

@@ -41,7 +41,7 @@ public static function writeHtaccess($directory, $deny_public_access = TRUE, $fo
    * @return string
    *   The desired contents of the .htaccess file.
    *
-   * @see file_save_htaccess()
+   * @see \Drupal\Component\FileSecurity\FileSecurity::writeHtaccess()
    */
   public static function htaccessLines($deny_public_access = TRUE) {
     $lines = static::htaccessPreventExecution();

core/lib/Drupal/Core/Form/form.api.php

@@ -120,7 +120,7 @@ function callback_batch_finished($success, $results, $operations) {
       '#theme' => 'item_list',
       '#items' => $results,
     ];
-    $message .= drupal_render($list);
+    $message .= \Drupal::service('renderer')->render($list);
     \Drupal::messenger()->addStatus($message);
   }
   else {

core/lib/Drupal/Core/Utility/token.api.php

@@ -166,7 +166,7 @@ function hook_tokens_alter(array &$replacements, array $context, \Drupal\Core\Re
     // of a field (field_title).
     if (isset($context['tokens']['title'])) {
       $title = $node->field_title->view('default');
-      $replacements[$context['tokens']['title']] = drupal_render($title);
+      $replacements[$context['tokens']['title']] = \Drupal::service('renderer')->render($title);
     }
   }
 }

core/modules/file/file.module

@@ -155,7 +155,7 @@ function file_load($fid, $reset = FALSE) {
  * @return \Drupal\file\FileInterface|false
  *   File entity if the copy is successful, or FALSE in the event of an error.
  *
- * @see file_unmanaged_copy()
+ * @see \Drupal\Core\File\FileSystemInterface::copy()
  * @see hook_file_copy()
  */
 function file_copy(FileInterface $source, $destination = NULL, $replace = FileSystemInterface::EXISTS_RENAME) {
@@ -565,7 +565,7 @@ function file_validate_image_resolution(FileInterface $file, $maximum_dimensions
  * @return \Drupal\file\FileInterface|false
  *   A file entity, or FALSE on error.
  *
- * @see file_unmanaged_save_data()
+ * @see \Drupal\Core\File\FileSystemInterface::saveData()
  */
 function file_save_data($data, $destination = NULL, $replace = FileSystemInterface::EXISTS_RENAME) {
   $user = \Drupal::currentUser();

core/modules/toolbar/src/Controller/ToolbarController.php

@@ -63,7 +63,7 @@ public function checkSubTreeAccess($hash) {
    * @return array
    *   The updated renderable array.
    *
-   * @see drupal_render()
+   * @see \Drupal\Core\Render\RendererInterface::render()
    */
   public static function preRenderAdministrationTray(array $element) {
     $menu_tree = \Drupal::service('toolbar.menu_tree');

core/tests/Drupal/TestSite/Commands/TestSiteTearDownCommand.php

@@ -110,7 +110,7 @@ protected function tearDown(TestDatabase $test_database, $db_url) {
    *   TRUE for success or if path does not exist, FALSE in the event of an
    *   error.
    *
-   * @see file_unmanaged_delete_recursive()
+   * @see \Drupal\Core\File\FileSystemInterface::deleteRecursive()
    */
   protected function fileUnmanagedDeleteRecursive($path, $callback = NULL) {
     if (isset($callback)) {