diff --git a/core/misc/autocomplete.js b/core/misc/autocomplete.js
index 7a9e0e0..ad9bb1c 100644
--- a/core/misc/autocomplete.js
+++ b/core/misc/autocomplete.js
@@ -1,4 +1,4 @@
-(function ($, Drupal, drupalSettings) {
+(function ($, Drupal) {
 
 "use strict";
 
@@ -81,7 +81,7 @@ function sourceData (request, response) {
    * Filter through the suggestions removing all terms already tagged and
    * display the available terms to the user.
    *
-   * @param {Array} suggestions
+   * @param {Object} suggestions
    */
   function showSuggestions (suggestions) {
     var tagged = autocomplete.splitValues(request.term);
@@ -175,7 +175,7 @@ Drupal.behaviors.autocomplete = {
 };
 
 /**
- * Performs a cached and delayed search.
+ * Autocomplete object implementation.
  */
 autocomplete = {
   cache: {},
@@ -197,4 +197,4 @@ autocomplete = {
 
 Drupal.autocomplete = autocomplete;
 
-})(jQuery, Drupal, drupalSettings);
+})(jQuery, Drupal);
diff --git a/core/modules/entity_reference/lib/Drupal/entity_reference/Tests/EntityReferenceAutocompleteTest.php b/core/modules/entity_reference/lib/Drupal/entity_reference/Tests/EntityReferenceAutocompleteTest.php
index 4884282..9895368 100644
--- a/core/modules/entity_reference/lib/Drupal/entity_reference/Tests/EntityReferenceAutocompleteTest.php
+++ b/core/modules/entity_reference/lib/Drupal/entity_reference/Tests/EntityReferenceAutocompleteTest.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\entity_reference\Tests;
 
-use Drupal\Component\Utility\Json;
 use Drupal\entity_reference\EntityReferenceController;
 use Drupal\system\Tests\Entity\EntityUnitTestBase;
 
diff --git a/core/modules/system/css/system.module.css b/core/modules/system/css/system.module.css
index 0b9291a..e09e8e4 100644
--- a/core/modules/system/css/system.module.css
+++ b/core/modules/system/css/system.module.css
@@ -21,7 +21,7 @@
 .js input.form-autocomplete.ui-autocomplete-loading {
   background-position: 100% -18px; /* LTR */
 }
-.js[dir="rtl"] input.form-autocomplete.ui-autocomplete-loading
+.js[dir="rtl"] input.form-autocomplete.ui-autocomplete-loading {
   background-position: 0% -18px;
 }