diff --git a/core/modules/config_translation/lib/Drupal/config_translation/ConfigEntityMapper.php b/core/modules/config_translation/lib/Drupal/config_translation/ConfigEntityMapper.php
index 411c091..d8d3297 100644
--- a/core/modules/config_translation/lib/Drupal/config_translation/ConfigEntityMapper.php
+++ b/core/modules/config_translation/lib/Drupal/config_translation/ConfigEntityMapper.php
@@ -7,7 +7,6 @@
 
 namespace Drupal\config_translation;
 
-use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Config\ConfigFactory;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
diff --git a/core/modules/config_translation/lib/Drupal/config_translation/Tests/ConfigTranslationOverviewTest.php b/core/modules/config_translation/lib/Drupal/config_translation/Tests/ConfigTranslationOverviewTest.php
index e5a80ef..a471ce9 100644
--- a/core/modules/config_translation/lib/Drupal/config_translation/Tests/ConfigTranslationOverviewTest.php
+++ b/core/modules/config_translation/lib/Drupal/config_translation/Tests/ConfigTranslationOverviewTest.php
@@ -8,7 +8,6 @@
 namespace Drupal\config_translation\Tests;
 
 use Drupal\Component\Utility\String;
-use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Language\Language;
 use Drupal\simpletest\WebTestBase;
 
diff --git a/core/modules/node/tests/modules/node_test/node_test.module b/core/modules/node/tests/modules/node_test/node_test.module
index b863aa1..27de982 100644
--- a/core/modules/node/tests/modules/node_test/node_test.module
+++ b/core/modules/node/tests/modules/node_test/node_test.module
@@ -169,7 +169,7 @@ function node_test_node_insert(EntityInterface $node) {
 /**
  * Implements hook_entity_info_alter().
  */
-function node_test_entity_info_alter(array $entity_info) {
+function node_test_entity_info_alter(&$entity_info) {
   /** @var $entity_info \Drupal\Core\Entity\EntityTypeInterface[] */
   if (\Drupal::state()->get('node_test.storage_controller')) {
     $entity_info['node']->setClass('Drupal\node_test\NodeTest');