only in patch2:
unchanged:
--- a/core/modules/ckeditor/src/Tests/CKEditorPluginManagerTest.php
+++ b/core/modules/ckeditor/src/Tests/CKEditorPluginManagerTest.php
@@ -62,7 +62,7 @@ function testEnabledPlugins() {
     // Case 1: no CKEditor plugins.
     $definitions = array_keys($this->manager->getDefinitions());
     sort($definitions);
-    $this->assertIdentical(array('drupalimage', 'drupalimagecaption', 'drupallink', 'internal', 'stylescombo'), $definitions, 'No CKEditor plugins found besides the built-in ones.');
+    $this->assertIdentical(array('drupalimage', 'drupalimagecaption', 'drupallink', 'internal', 'language', 'stylescombo'), $definitions, 'No CKEditor plugins found besides the built-in ones.');
     $enabled_plugins = array(
       'drupalimage' => 'core/modules/ckeditor/js/plugins/drupalimage/plugin.js',
       'drupallink' => 'core/modules/ckeditor/js/plugins/drupallink/plugin.js',
@@ -80,7 +80,7 @@ function testEnabledPlugins() {
     // Case 2: CKEditor plugins are available.
     $plugin_ids = array_keys($this->manager->getDefinitions());
     sort($plugin_ids);
-    $this->assertIdentical(array('drupalimage', 'drupalimagecaption', 'drupallink', 'internal', 'llama', 'llama_button', 'llama_contextual', 'llama_contextual_and_button', 'stylescombo'), $plugin_ids, 'Additional CKEditor plugins found.');
+    $this->assertIdentical(array('drupalimage', 'drupalimagecaption', 'drupallink', 'internal', 'language', 'llama', 'llama_button', 'llama_contextual', 'llama_contextual_and_button', 'stylescombo'), $plugin_ids, 'Additional CKEditor plugins found.');
     $this->assertIdentical($enabled_plugins, $this->manager->getEnabledPluginFiles($editor), 'Only the internal plugins are enabled.');
     $this->assertIdentical(array('internal' => NULL) + $enabled_plugins, $this->manager->getEnabledPluginFiles($editor, TRUE), 'Only the "internal" plugin is enabled.');