Issue #2715741 by Mile23, pfrenssen: Fix 'Drupal.Classes.FullyQualifiedNamespace' coding standard

core/includes/common.inc

@@ -14,6 +14,7 @@
 use Drupal\Component\Utility\SortArray;
 use Drupal\Component\Utility\UrlHelper;
 use Drupal\Core\Cache\Cache;
+use Drupal\Core\Render\Element\Link;
 use Drupal\Core\Render\Markup;
 use Drupal\Core\StringTranslation\TranslatableMarkup;
 use Drupal\Core\PhpStorage\PhpStorageFactory;
@@ -748,7 +749,7 @@ function drupal_clear_js_cache() {
  *   Use \Drupal\Core\Render\Element\Link::preRenderLink().
  */
 function drupal_pre_render_link($element) {
-  return Element\Link::preRenderLink($element);
+  return Link::preRenderLink($element);
 }
 
 /**

core/includes/form.inc

@@ -7,6 +7,7 @@
 
 use Drupal\Component\Utility\UrlHelper;
 use Drupal\Core\Render\Element;
+use Drupal\Core\Render\Element\RenderElement;
 use Drupal\Core\Template\Attribute;
 use Drupal\Core\Url;
 use Symfony\Component\HttpFoundation\RedirectResponse;
@@ -29,7 +30,7 @@
 function template_preprocess_select(&$variables) {
   $element = $variables['element'];
   Element::setAttributes($element, array('id', 'name', 'size'));
-  Element\RenderElement::setAttributes($element, array('form-select'));
+  RenderElement::setAttributes($element, array('form-select'));
 
   $variables['attributes'] = $element['#attributes'];
   $variables['options'] = form_select_options($element);
@@ -191,7 +192,7 @@ function form_get_options($element, $key) {
 function template_preprocess_fieldset(&$variables) {
   $element = $variables['element'];
   Element::setAttributes($element, array('id'));
-  Element\RenderElement::setAttributes($element);
+  RenderElement::setAttributes($element);
   $variables['attributes'] = isset($element['#attributes']) ? $element['#attributes'] : array();
   $variables['prefix'] = isset($element['#field_prefix']) ? $element['#field_prefix'] : NULL;
   $variables['suffix'] = isset($element['#field_suffix']) ? $element['#field_suffix'] : NULL;
@@ -376,7 +377,7 @@ function template_preprocess_form(&$variables) {
 function template_preprocess_textarea(&$variables) {
   $element = $variables['element'];
   Element::setAttributes($element, array('id', 'name', 'rows', 'cols', 'placeholder'));
-  Element\RenderElement::setAttributes($element, array('form-textarea'));
+  RenderElement::setAttributes($element, array('form-textarea'));
   $variables['wrapper_attributes'] = new Attribute();
   $variables['attributes'] = new Attribute($element['#attributes']);
   $variables['value'] = $element['#value'];

core/lib/Drupal/Core/DrupalKernel.php

@@ -2,6 +2,7 @@
 
 namespace Drupal\Core;
 
+use Drupal\Component\Assertion\Handle;
 use Drupal\Component\FileCache\FileCacheFactory;
 use Drupal\Component\Utility\Unicode;
 use Drupal\Component\Utility\UrlHelper;
@@ -18,6 +19,7 @@
 use Drupal\Core\Language\Language;
 use Drupal\Core\Site\Settings;
 use Symfony\Cmf\Component\Routing\RouteObjectInterface;
+use Symfony\Component\ClassLoader\ApcClassLoader;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
 use Symfony\Component\HttpFoundation\RedirectResponse;
@@ -923,7 +925,7 @@ public static function bootEnvironment() {
         assert_options(ASSERT_ACTIVE, TRUE);
         // Now synchronize PHP 5 and 7's handling of assertions as much as
         // possible.
-        \Drupal\Component\Assertion\Handle::register();
+        Handle::register();
 
         // Log fatal errors to the test site directory.
         ini_set('log_errors', 1);
@@ -978,7 +980,7 @@ protected function initializeSettings(Request $request) {
         && Settings::get('class_loader_auto_detect', TRUE)
         && extension_loaded('apc')) {
       $prefix = Settings::getApcuPrefix('class_loader', $this->root);
-      $apc_loader = new \Symfony\Component\ClassLoader\ApcClassLoader($prefix, $this->classLoader);
+      $apc_loader = new ApcClassLoader($prefix, $this->classLoader);
       $this->classLoader->unregister();
       $apc_loader->register();
       $this->classLoader = $apc_loader;

core/lib/Drupal/Core/PageCache/DefaultRequestPolicy.php

@@ -2,6 +2,8 @@
 
 namespace Drupal\Core\PageCache;
 
+use Drupal\Core\PageCache\RequestPolicy\CommandLineOrUnsafeMethod;
+use Drupal\Core\PageCache\RequestPolicy\NoSessionOpen;
 use Drupal\Core\Session\SessionConfigurationInterface;
 
 /**
@@ -20,8 +22,8 @@ class DefaultRequestPolicy extends ChainRequestPolicy {
    *   The session configuration.
    */
   public function __construct(SessionConfigurationInterface $session_configuration) {
-    $this->addPolicy(new RequestPolicy\CommandLineOrUnsafeMethod());
-    $this->addPolicy(new RequestPolicy\NoSessionOpen($session_configuration));
+    $this->addPolicy(new CommandLineOrUnsafeMethod());
+    $this->addPolicy(new NoSessionOpen($session_configuration));
   }
 
 }

core/modules/aggregator/src/Tests/ItemCacheTagsTest.php

@@ -4,6 +4,7 @@
 
 use Drupal\aggregator\Entity\Feed;
 use Drupal\aggregator\Entity\Item;
+use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\system\Tests\Entity\EntityCacheTagsTestBase;
 use Drupal\user\Entity\Role;
 use Drupal\user\RoleInterface;
@@ -63,7 +64,7 @@ protected function createEntity() {
    */
   public function testEntityCreation() {
     // Create a cache entry that is tagged with a feed cache tag.
-    \Drupal::cache('render')->set('foo', 'bar', \Drupal\Core\Cache\CacheBackendInterface::CACHE_PERMANENT, $this->entity->getCacheTags());
+    \Drupal::cache('render')->set('foo', 'bar', CacheBackendInterface::CACHE_PERMANENT, $this->entity->getCacheTags());
 
     // Verify a cache hit.
     $this->verifyRenderCache('foo', array('aggregator_feed:1'));

core/modules/big_pipe/src/Tests/BigPipePlaceholderTestCases.php

@@ -9,6 +9,7 @@
 
 use Drupal\big_pipe\Render\BigPipeMarkup;
 use Drupal\Core\Session\AccountInterface;
+use Drupal\Core\StringTranslation\PluralTranslatableMarkup;
 use Drupal\Core\Url;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
@@ -93,7 +94,7 @@ public static function cases(ContainerInterface $container = NULL, AccountInterf
               'theme' => 'classy',
               'libraries' => 'big_pipe/big_pipe,classy/base,classy/messages,core/drupal.active-link,core/html5shiv,core/normalize,system/base',
             ],
-            'pluralDelimiter' => \Drupal\Core\StringTranslation\PluralTranslatableMarkup::DELIMITER,
+            'pluralDelimiter' => PluralTranslatableMarkup::DELIMITER,
             'user' => [
               'uid' => '1',
               'permissionsHash' => $container->get('user_permissions_hash_generator')->generate($user),

core/modules/big_pipe/src/Tests/BigPipeTest.php

@@ -361,7 +361,7 @@ protected function getTestCases() {
     $csrf_token_seed = unserialize(explode('_sf2_meta|', $session_data)[1])['s'];
     $this->container->get('session_manager.metadata_bag')->setCsrfTokenSeed($csrf_token_seed);
 
-    return \Drupal\big_pipe\Tests\BigPipePlaceholderTestCases::cases($this->container, $this->rootUser);
+    return BigPipePlaceholderTestCases::cases($this->container, $this->rootUser);
   }
 
   /**

core/modules/big_pipe/tests/modules/big_pipe_test/src/BigPipeTestController.php

@@ -3,6 +3,7 @@
 namespace Drupal\big_pipe_test;
 
 use Drupal\big_pipe\Render\BigPipeMarkup;
+use Drupal\big_pipe\Tests\BigPipePlaceholderTestCases;
 use Drupal\big_pipe_test\EventSubscriber\BigPipeTestSubscriber;
 
 class BigPipeTestController {
@@ -15,7 +16,7 @@ class BigPipeTestController {
   public function test() {
     $build = [];
 
-    $cases = \Drupal\big_pipe\Tests\BigPipePlaceholderTestCases::cases(\Drupal::getContainer());
+    $cases = BigPipePlaceholderTestCases::cases(\Drupal::getContainer());
 
     // 1. HTML placeholder: status messages. Drupal renders those automatically,
     // so all that we need to do in this controller is set a message.

core/modules/big_pipe/tests/src/Unit/Render/Placeholder/BigPipeStrategyTest.php

@@ -3,6 +3,7 @@
 namespace Drupal\Tests\big_pipe\Unit\Render\Placeholder;
 
 use Drupal\big_pipe\Render\Placeholder\BigPipeStrategy;
+use Drupal\big_pipe\Tests\BigPipePlaceholderTestCases;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\Core\Session\SessionConfigurationInterface;
 use Drupal\Tests\UnitTestCase;
@@ -61,7 +62,7 @@ public function testProcessPlaceholders(array $placeholders, $method, $route_mat
    * @see \Drupal\big_pipe\Tests\BigPipePlaceholderTestCases
    */
   public function placeholdersProvider() {
-    $cases = \Drupal\big_pipe\Tests\BigPipePlaceholderTestCases::cases();
+    $cases = BigPipePlaceholderTestCases::cases();
 
     // Generate $placeholders variable as expected by
     // \Drupal\Core\Render\Placeholder\PlaceholderStrategyInterface::processPlaceholders().

core/modules/comment/src/Tests/CommentCacheTagsTest.php

@@ -82,7 +82,7 @@ protected function createEntity() {
       'entity_id' => $this->entityTestCamelid->id(),
       'entity_type' => 'entity_test',
       'field_name' => 'comment',
-      'status' => \Drupal\comment\CommentInterface::PUBLISHED,
+      'status' => CommentInterface::PUBLISHED,
     ));
     $comment->save();
 

core/modules/config/tests/config_install_dependency_test/config_install_dependency_test.module

@@ -5,10 +5,12 @@
  * Provides hook implementations for testing purposes.
  */
 
+use Drupal\Core\Entity\EntityInterface;
+
 /**
  * Implements hook_ENTITY_TYPE_create.
  */
-function config_install_dependency_test_config_test_create(\Drupal\Core\Entity\EntityInterface $entity) {
+function config_install_dependency_test_config_test_create(EntityInterface $entity) {
   // Add an enforced dependency on this module so that we can test if this is
   // possible during module installation.
   $entity->setEnforcedDependencies(['module' => ['config_install_dependency_test']]);

core/modules/contact/tests/modules/contact_storage_test/contact_storage_test.module

@@ -6,13 +6,14 @@
  */
 
 use Drupal\contact\ContactFormInterface;
+use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Field\BaseFieldDefinition;
 use Drupal\Core\Form\FormStateInterface;
 
 /**
  * Implements hook_entity_base_field_info().
  */
-function contact_storage_test_entity_base_field_info(\Drupal\Core\Entity\EntityTypeInterface $entity_type) {
+function contact_storage_test_entity_base_field_info(EntityTypeInterface $entity_type) {
   if ($entity_type->id() == 'contact_message') {
     $fields = array();
 

core/modules/field/field.module

@@ -7,6 +7,7 @@
 use Drupal\Core\Config\ConfigImporter;
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Entity\DynamicallyFieldableEntityStorageInterface;
+use Drupal\field\ConfigImporterFieldPurger;
 use Drupal\field\Entity\FieldConfig;
 use Drupal\field\Entity\FieldStorageConfig;
 use Drupal\field\FieldConfigInterface;
@@ -168,7 +169,7 @@ function field_cron() {
 /**
  * Implements hook_entity_field_storage_info().
  */
-function field_entity_field_storage_info(\Drupal\Core\Entity\EntityTypeInterface $entity_type) {
+function field_entity_field_storage_info(EntityTypeInterface $entity_type) {
   if (\Drupal::entityManager()->getStorage($entity_type->id()) instanceof DynamicallyFieldableEntityStorageInterface) {
     // Query by filtering on the ID as this is more efficient than filtering
     // on the entity_type property directly.
@@ -301,7 +302,7 @@ function _field_create_entity_from_ids($ids) {
  * Implements hook_config_import_steps_alter().
  */
 function field_config_import_steps_alter(&$sync_steps, ConfigImporter $config_importer) {
-  $field_storages = \Drupal\field\ConfigImporterFieldPurger::getFieldStoragesToPurge(
+  $field_storages = ConfigImporterFieldPurger::getFieldStoragesToPurge(
     $config_importer->getStorageComparer()->getSourceStorage()->read('core.extension'),
     $config_importer->getStorageComparer()->getChangelist('delete')
   );
@@ -327,7 +328,7 @@ function field_form_config_admin_import_form_alter(&$form, FormStateInterface $f
   $user_input = $form_state->getUserInput();
   $storage_comparer = $form_state->get('storage_comparer');
   if ($storage_comparer && empty($user_input)) {
-    $field_storages = \Drupal\field\ConfigImporterFieldPurger::getFieldStoragesToPurge(
+    $field_storages = ConfigImporterFieldPurger::getFieldStoragesToPurge(
       $storage_comparer->getSourceStorage()->read('core.extension'),
       $storage_comparer->getChangelist('delete')
     );

core/modules/field/tests/fixtures/update/drupal-8.views_entity_reference_plugins-2429191.php

@@ -8,6 +8,7 @@
 
 use Drupal\Core\Database\Database;
 use Drupal\Component\Serialization\Yaml;
+use Drupal\field\Entity\FieldStorageConfig;
 
 $connection = Database::getConnection();
 
@@ -59,8 +60,8 @@
   ->execute()
   ->fetchField();
 $installed = unserialize($installed);
-$installed['field_ref_views_select_2429191'] = new \Drupal\field\Entity\FieldStorageConfig($field_ref_views_select_2429191);
-$installed['field_ref_autocreate_2412569'] = new \Drupal\field\Entity\FieldStorageConfig($field_ref_autocreate_2412569);
+$installed['field_ref_views_select_2429191'] = new FieldStorageConfig($field_ref_views_select_2429191);
+$installed['field_ref_autocreate_2412569'] = new FieldStorageConfig($field_ref_autocreate_2412569);
 $connection->update('key_value')
   ->condition('collection', 'entity.definitions.installed')
   ->condition('name', 'node.field_storage_definitions')

core/modules/field/tests/modules/field_test/field_test.module

@@ -13,8 +13,9 @@
  * test helper functions
  */
 
-use Drupal\field\FieldStorageConfigInterface;
+use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Form\FormStateInterface;
+use Drupal\field\FieldStorageConfigInterface;
 
 require_once __DIR__ . '/field_test.entity.inc';
 require_once __DIR__ . '/field_test.field.inc';
@@ -149,7 +150,7 @@ function field_test_entity_extra_field_info_alter(&$info) {
 /**
  * Implements hook_entity_bundle_field_info_alter().
  */
-function field_test_entity_bundle_field_info_alter(&$fields, \Drupal\Core\Entity\EntityTypeInterface $entity_type, $bundle) {
+function field_test_entity_bundle_field_info_alter(&$fields, EntityTypeInterface $entity_type, $bundle) {
   if (($field_name = \Drupal::state()->get('field_test_set_constraint', FALSE)) && $entity_type->id() == 'entity_test' && $bundle == 'entity_test' && !empty($fields[$field_name])) {
     $fields[$field_name]->setPropertyConstraints('value', [
       'Range' => [

core/modules/field/tests/modules/field_third_party_test/field_third_party_test.module

@@ -5,12 +5,15 @@
  * Test module.
  */
 
+use Drupal\Core\Field\FieldDefinitionInterface;
+use Drupal\Core\Field\FormatterInterface;
+use Drupal\Core\Field\WidgetInterface;
 use Drupal\Core\Form\FormStateInterface;
 
 /**
  * Implements hook_field_widget_third_party_settings_form().
  */
-function field_third_party_test_field_widget_third_party_settings_form(\Drupal\Core\Field\WidgetInterface $plugin, \Drupal\Core\Field\FieldDefinitionInterface $field_definition, $form_mode, $form, FormStateInterface $form_state) {
+function field_third_party_test_field_widget_third_party_settings_form(WidgetInterface $plugin, FieldDefinitionInterface $field_definition, $form_mode, $form, FormStateInterface $form_state) {
   $element['field_test_widget_third_party_settings_form'] = array(
     '#type' => 'textfield',
     '#title' => t('3rd party widget settings form'),
@@ -30,7 +33,7 @@ function field_third_party_test_field_widget_settings_summary_alter(&$summary, $
 /**
  * Implements hook_field_formatter_third_party_settings_form().
  */
-function field_third_party_test_field_formatter_third_party_settings_form(\Drupal\Core\Field\FormatterInterface $plugin, \Drupal\Core\Field\FieldDefinitionInterface $field_definition, $view_mode, $form, FormStateInterface $form_state) {
+function field_third_party_test_field_formatter_third_party_settings_form(FormatterInterface $plugin, FieldDefinitionInterface $field_definition, $view_mode, $form, FormStateInterface $form_state) {
   $element['field_test_field_formatter_third_party_settings_form'] = array(
     '#type' => 'textfield',
     '#title' => t('3rd party formatter settings form'),

core/modules/filter/tests/src/Kernel/FilterAPITest.php

@@ -207,7 +207,7 @@ function testFilterFormatAPI() {
     // Test on nonsensical_restricted_html, where the allowed attribute values
     // contain asterisks, which do not have any meaning, but which we also
     // cannot prevent because configuration can be modified outside of forms.
-    $nonsensical_restricted_html = \Drupal\filter\Entity\FilterFormat::create(array(
+    $nonsensical_restricted_html = FilterFormat::create(array(
       'format' => 'nonsensical_restricted_html',
       'name' => 'Nonsensical Restricted HTML',
       'filters' => array(
@@ -468,7 +468,7 @@ public function assertFilterFormatViolation(ConstraintViolationListInterface $vi
    */
   public function testDependencyRemoval() {
     $this->installSchema('user', array('users_data'));
-    $filter_format = \Drupal\filter\Entity\FilterFormat::load('filtered_html');
+    $filter_format = FilterFormat::load('filtered_html');
 
     // Disable the filter_test_restrict_tags_and_attributes filter plugin but
     // have custom configuration so that the filter plugin is still configured
@@ -498,7 +498,7 @@ public function testDependencyRemoval() {
     // Verify the filter format still exists but the dependency and filter is
     // gone.
     \Drupal::entityManager()->getStorage('filter_format')->resetCache();
-    $filter_format = \Drupal\filter\Entity\FilterFormat::load('filtered_html');
+    $filter_format = FilterFormat::load('filtered_html');
     $this->assertEqual([], $filter_format->getDependencies());
     // Use the get method since the FilterFormat::filters() method only returns
     // existing plugins.

core/modules/forum/forum.module

@@ -8,6 +8,7 @@
 use Drupal\comment\CommentInterface;
 use Drupal\comment\Plugin\Field\FieldType\CommentItemInterface;
 use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Url;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Routing\RouteMatchInterface;
@@ -134,7 +135,7 @@ function forum_uri($forum) {
 /**
  * Implements hook_entity_bundle_field_info_alter().
  */
-function forum_entity_bundle_field_info_alter(&$fields, \Drupal\Core\Entity\EntityTypeInterface $entity_type, $bundle) {
+function forum_entity_bundle_field_info_alter(&$fields, EntityTypeInterface $entity_type, $bundle) {
   if ($entity_type->id() == 'node'  && !empty($fields['taxonomy_forums'])) {
     $fields['taxonomy_forums']->addConstraint('ForumLeaf', []);
   }

core/modules/locale/locale.bulk.inc

@@ -340,7 +340,7 @@ function locale_translate_batch_refresh(&$context) {
     // Clear cache and force refresh of JavaScript translations.
     _locale_refresh_translations($context['sandbox']['refresh']['languages'], $next);
     // Check whether we need to refresh configuration objects.
-    if ($names = \Drupal\locale\Locale::config()->getStringNames($next)) {
+    if ($names = Locale::config()->getStringNames($next)) {
       $context['sandbox']['refresh']['names_finished'] = $context['finished'];
       $context['sandbox']['refresh']['names'] = $names;
     }
@@ -533,7 +533,7 @@ function locale_translate_delete_translation_files(array $projects = array(), ar
  */
 function locale_config_batch_update_components(array $options, array $langcodes = array(), array $components = array()) {
   $langcodes = $langcodes ? $langcodes : array_keys(\Drupal::languageManager()->getLanguages());
-  if ($langcodes && $names = \Drupal\locale\Locale::config()->getComponentNames($components)) {
+  if ($langcodes && $names = Locale::config()->getComponentNames($components)) {
     return locale_config_batch_build($names, $langcodes, $options);
   }
 }

core/modules/locale/tests/src/Kernel/LocaleConfigSubscriberTest.php

@@ -67,7 +67,7 @@ protected function setUp() {
     // @see locale_system_update()
     locale_system_set_config_langcodes();
     $langcodes = array_keys(\Drupal::languageManager()->getLanguages());
-    $names = \Drupal\locale\Locale::config()->getComponentNames();
+    $names = Locale::config()->getComponentNames();
     Locale::config()->updateConfigTranslations($names, $langcodes);
 
     $this->configFactory = $this->container->get('config.factory');

core/modules/node/tests/modules/node_access_test/node_access_test.module

@@ -19,6 +19,7 @@
  * @see \Drupal\node\Tests\NodeAccessBaseTableTest
  */
 
+use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\Access\AccessResult;
 use Drupal\field\Entity\FieldStorageConfig;
 use Drupal\field\Entity\FieldConfig;
@@ -144,7 +145,7 @@ function node_access_test_add_field(NodeTypeInterface $type) {
 /**
  * Implements hook_node_access().
  */
-function node_access_test_node_access(\Drupal\node\NodeInterface $node, $op, \Drupal\Core\Session\AccountInterface $account) {
+function node_access_test_node_access(NodeInterface $node, $op, AccountInterface $account) {
   $secret_catalan = \Drupal::state()
     ->get('node_access_test_secret_catalan') ?: 0;
   if ($secret_catalan && $node->language()->getId() == 'ca') {

core/modules/node/tests/modules/node_test/node_test.module

@@ -8,6 +8,7 @@
  * interaction with the Node module.
  */
 
+use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
 use Drupal\Core\Session\AccountInterface;
 use Drupal\node\NodeInterface;
@@ -151,7 +152,7 @@ function node_test_node_update(NodeInterface $node) {
 /**
  * Implements hook_entity_view_mode_alter().
  */
-function node_test_entity_view_mode_alter(&$view_mode, Drupal\Core\Entity\EntityInterface $entity, $context) {
+function node_test_entity_view_mode_alter(&$view_mode, EntityInterface $entity, $context) {
   // Only alter the view mode if we are on the test callback.
   $change_view_mode = \Drupal::state()->get( 'node_test_change_view_mode') ?: '';
   if ($change_view_mode) {

core/modules/node/tests/src/Kernel/NodeFieldOverridesTest.php

@@ -2,6 +2,7 @@
 
 namespace Drupal\Tests\node\Kernel;
 
+use Drupal\user\UserInterface;
 use Drupal\Core\Field\Entity\BaseFieldOverride;
 use Drupal\KernelTests\Core\Entity\EntityKernelTestBase;
 use Drupal\node\Entity\Node;
@@ -56,7 +57,7 @@ public function testFieldOverrides() {
     /** @var \Drupal\node\NodeInterface $node */
     $node = Node::create(['type' => 'ponies']);
     $owner = $node->getOwner();
-    $this->assertTrue($owner instanceof \Drupal\user\UserInterface);
+    $this->assertTrue($owner instanceof UserInterface);
     $this->assertEqual($owner->id(), $this->user->id());
   }
 

core/modules/responsive_image/responsive_image.module

@@ -5,6 +5,8 @@
  * Responsive image display formatter for image fields.
  */
 
+use Drupal\Core\Template\Attribute;
+use Drupal\Core\Logger\RfcLogLevel;
 use Drupal\Component\Utility\Unicode;
 use Drupal\Core\Routing\RouteMatchInterface;
 use Drupal\image\Entity\ImageStyle;
@@ -162,7 +164,7 @@ function template_preprocess_responsive_image(&$variables) {
   // execution.
   if (!$responsive_image_style) {
     $variables['img_element'] = [];
-    \Drupal::logger('responsive_image')->log(\Drupal\Core\Logger\RfcLogLevel::ERROR, 'Failed to load responsive image style: “@style“ while displaying responsive image.', ['@style' => $variables['responsive_image_style_id']]);
+    \Drupal::logger('responsive_image')->log(RfcLogLevel::ERROR, 'Failed to load responsive image style: “@style“ while displaying responsive image.', ['@style' => $variables['responsive_image_style_id']]);
     return;
   }
   // Retrieve all breakpoints and multipliers and reverse order of breakpoints.
@@ -411,7 +413,7 @@ function responsive_image_build_source_attributes(ImageInterface $image, array $
   }
   // Sort the srcset from small to large image width or multiplier.
   ksort($srcset);
-  $source_attributes = new \Drupal\Core\Template\Attribute(array(
+  $source_attributes = new Attribute(array(
     'srcset' => implode(', ', array_unique($srcset)),
   ));
   $media_query = trim($breakpoint->getMediaQuery());
@@ -494,7 +496,7 @@ function _responsive_image_image_style_url($style_name, $path) {
     return 'data:image/gif;base64,R0lGODlhAQABAIABAP///wAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==';
   }
   $entity = ImageStyle::load($style_name);
-  if ($entity instanceof Drupal\image\Entity\ImageStyle) {
+  if ($entity instanceof ImageStyle) {
     return file_url_transform_relative($entity->buildUrl($path));
   }
   return file_url_transform_relative(file_create_url($path));

core/modules/shortcut/src/Tests/ShortcutCacheTagsTest.php

@@ -2,6 +2,7 @@
 
 namespace Drupal\shortcut\Tests;
 
+use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\shortcut\Entity\Shortcut;
 use Drupal\system\Tests\Entity\EntityCacheTagsTestBase;
 use Drupal\user\Entity\Role;
@@ -55,7 +56,7 @@ protected function createEntity() {
   public function testEntityCreation() {
     // Create a cache entry that is tagged with a shortcut set cache tag.
     $cache_tags = ['config:shortcut.set.default'];
-    \Drupal::cache('render')->set('foo', 'bar', \Drupal\Core\Cache\CacheBackendInterface::CACHE_PERMANENT, $cache_tags);
+    \Drupal::cache('render')->set('foo', 'bar', CacheBackendInterface::CACHE_PERMANENT, $cache_tags);
 
     // Verify a cache hit.
     $this->verifyRenderCache('foo', $cache_tags);

core/modules/simpletest/src/TestBase.php

@@ -2,6 +2,7 @@
 
 namespace Drupal\simpletest;
 
+use Drupal\Component\Assertion\Handle;
 use Drupal\Component\Render\MarkupInterface;
 use Drupal\Component\Utility\Crypt;
 use Drupal\Component\Utility\SafeMarkup;
@@ -1019,7 +1020,7 @@ public function run(array $methods = array()) {
 
     // Force assertion failures to be thrown as AssertionError for PHP 5 & 7
     // compatibility.
-    \Drupal\Component\Assertion\Handle::register();
+    Handle::register();
 
     set_error_handler(array($this, 'errorHandler'));
     // Iterate through all the methods in this class, unless a specific list of

core/modules/simpletest/src/WebTestBase.php

@@ -27,6 +27,7 @@
 use Drupal\Core\Url;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\Yaml\Yaml as SymfonyYaml;
 use Zend\Diactoros\Uri;
 
 /**
@@ -635,7 +636,7 @@ protected function prepareSettings() {
     copy($settings_services_file, $directory . '/services.yml');
     if ($this->strictConfigSchema) {
       // Add a listener to validate configuration schema on save.
-      $yaml = new \Symfony\Component\Yaml\Yaml();
+      $yaml = new SymfonyYaml();
       $content = file_get_contents($directory . '/services.yml');
       $services = $yaml->parse($content);
       $services['services']['simpletest.config_schema_checker'] = [

core/modules/simpletest/tests/src/Unit/TestInfoParsingTest.php

@@ -25,7 +25,7 @@ class TestInfoParsingTest extends UnitTestCase {
    * @dataProvider infoParserProvider
    */
   public function testTestInfoParser($expected, $classname, $doc_comment = NULL) {
-    $info = \Drupal\simpletest\TestDiscovery::getTestInfo($classname, $doc_comment);
+    $info = TestDiscovery::getTestInfo($classname, $doc_comment);
     $this->assertEquals($expected, $info);
   }
 
@@ -245,7 +245,7 @@ public function testTestInfoParserMissingGroup() {
  * Bulk delete storages and fields, and clean up afterwards.
  */
 EOT;
-    \Drupal\simpletest\TestDiscovery::getTestInfo($classname, $doc_comment);
+    TestDiscovery::getTestInfo($classname, $doc_comment);
   }
 
   /**
@@ -258,7 +258,7 @@ public function testTestInfoParserMissingSummary() {
  * @group field
  */
 EOT;
-    $info = \Drupal\simpletest\TestDiscovery::getTestInfo($classname, $doc_comment);
+    $info = TestDiscovery::getTestInfo($classname, $doc_comment);
     $this->assertEmpty($info['description']);
   }
 

core/modules/system/src/Tests/Ajax/DialogTest.php

@@ -2,6 +2,7 @@
 
 namespace Drupal\system\Tests\Ajax;
 
+use Drupal\ajax_test\Controller\AjaxTestController;
 use Drupal\Core\EventSubscriber\MainContentViewSubscriber;
 use Drupal\Core\Form\FormBuilderInterface;
 use Drupal\Core\Url;
@@ -29,7 +30,7 @@ public function testDialog() {
     $this->drupalGet('ajax-test/dialog');
 
     // Set up variables for this test.
-    $dialog_renderable = \Drupal\ajax_test\Controller\AjaxTestController::dialogContents();
+    $dialog_renderable = AjaxTestController::dialogContents();
     $dialog_contents = \Drupal::service('renderer')->renderRoot($dialog_renderable);
     $modal_expected_response = array(
       'command' => 'openDialog',

core/modules/system/src/Tests/System/FloodTest.php

@@ -2,6 +2,8 @@
 
 namespace Drupal\system\Tests\System;
 
+use Drupal\Core\Flood\DatabaseBackend;
+use Drupal\Core\Flood\MemoryBackend;
 use Drupal\simpletest\WebTestBase;
 use Symfony\Component\HttpFoundation\Request;
 
@@ -59,7 +61,7 @@ public function testMemoryBackend() {
     $name = 'flood_test_cleanup';
 
     $request_stack = \Drupal::service('request_stack');
-    $flood = new \Drupal\Core\Flood\MemoryBackend($request_stack);
+    $flood = new MemoryBackend($request_stack);
     // Register expired event.
     $flood->register($name, $window_expired);
     // Verify event is not allowed.
@@ -87,7 +89,7 @@ public function testDatabaseBackend() {
 
     $connection = \Drupal::service('database');
     $request_stack = \Drupal::service('request_stack');
-    $flood = new \Drupal\Core\Flood\DatabaseBackend($connection, $request_stack);
+    $flood = new DatabaseBackend($connection, $request_stack);
     // Register expired event.
     $flood->register($name, $window_expired);
     // Verify event is not allowed.

core/modules/system/src/Tests/TypedData/TypedDataTest.php

@@ -2,14 +2,22 @@
 
 namespace Drupal\system\Tests\TypedData;
 
+use Drupal\Core\Datetime\DrupalDateTime;
 use Drupal\Core\Field\BaseFieldDefinition;
 use Drupal\Core\TypedData\DataDefinition;
 use Drupal\Core\TypedData\ListDataDefinition;
 use Drupal\Core\TypedData\MapDataDefinition;
+use Drupal\Core\TypedData\Type\BinaryInterface;
+use Drupal\Core\TypedData\Type\BooleanInterface;
+use Drupal\Core\TypedData\Type\DateTimeInterface;
+use Drupal\Core\TypedData\Type\DurationInterface;
+use Drupal\Core\TypedData\Type\FloatInterface;
+use Drupal\Core\TypedData\Type\IntegerInterface;
+use Drupal\Core\TypedData\Type\StringInterface;
+use Drupal\Core\TypedData\Type\UriInterface;
 use Drupal\Core\TypedData\TypedDataInterface;
 use Drupal\file\Entity\File;
 use Drupal\simpletest\KernelTestBase;
-use Drupal\Core\Datetime\DrupalDateTime;
 
 /**
  * Tests the functionality of all core data types.
@@ -49,7 +57,7 @@ protected function createTypedData($definition, $value = NULL, $name = NULL) {
       $definition = DataDefinition::create($definition['type']);
     }
     $data = $this->typedDataManager->create($definition, $value, $name);
-    $this->assertTrue($data instanceof \Drupal\Core\TypedData\TypedDataInterface, 'Typed data object is an instance of the typed data interface.');
+    $this->assertTrue($data instanceof TypedDataInterface, 'Typed data object is an instance of the typed data interface.');
     return $data;
   }
 
@@ -59,7 +67,7 @@ protected function createTypedData($definition, $value = NULL, $name = NULL) {
   public function testGetAndSet() {
     // Boolean type.
     $typed_data = $this->createTypedData(array('type' => 'boolean'), TRUE);
-    $this->assertTrue($typed_data instanceof \Drupal\Core\TypedData\Type\BooleanInterface, 'Typed data object is an instance of BooleanInterface.');
+    $this->assertTrue($typed_data instanceof BooleanInterface, 'Typed data object is an instance of BooleanInterface.');
     $this->assertTrue($typed_data->getValue() === TRUE, 'Boolean value was fetched.');
     $this->assertEqual($typed_data->validate()->count(), 0);
     $typed_data->setValue(FALSE);
@@ -75,7 +83,7 @@ public function testGetAndSet() {
     // String type.
     $value = $this->randomString();
     $typed_data = $this->createTypedData(array('type' => 'string'), $value);
-    $this->assertTrue($typed_data instanceof \Drupal\Core\TypedData\Type\StringInterface, 'Typed data object is an instance of StringInterface.');
+    $this->assertTrue($typed_data instanceof StringInterface, 'Typed data object is an instance of StringInterface.');
     $this->assertTrue($typed_data->getValue() === $value, 'String value was fetched.');
     $this->assertEqual($typed_data->validate()->count(), 0);
     $new_value = $this->randomString();
@@ -93,7 +101,7 @@ public function testGetAndSet() {
     // Integer type.
     $value = rand();
     $typed_data = $this->createTypedData(array('type' => 'integer'), $value);
-    $this->assertTrue($typed_data instanceof \Drupal\Core\TypedData\Type\IntegerInterface, 'Typed data object is an instance of IntegerInterface.');
+    $this->assertTrue($typed_data instanceof IntegerInterface, 'Typed data object is an instance of IntegerInterface.');
     $this->assertTrue($typed_data->getValue() === $value, 'Integer value was fetched.');
     $this->assertEqual($typed_data->validate()->count(), 0);
     $new_value = rand();
@@ -110,7 +118,7 @@ public function testGetAndSet() {
     // Float type.
     $value = 123.45;
     $typed_data = $this->createTypedData(array('type' => 'float'), $value);
-    $this->assertTrue($typed_data instanceof \Drupal\Core\TypedData\Type\FloatInterface, 'Typed data object is an instance of FloatInterface.');
+    $this->assertTrue($typed_data instanceof FloatInterface, 'Typed data object is an instance of FloatInterface.');
     $this->assertTrue($typed_data->getValue() === $value, 'Float value was fetched.');
     $this->assertEqual($typed_data->validate()->count(), 0);
     $new_value = 678.90;
@@ -127,7 +135,7 @@ public function testGetAndSet() {