Update to Drupal 8.0.2. For more information, see https://www.drupal.org/drupal-8.0.2-release-notes

core/modules/language/language.module

@@ -49,7 +49,7 @@ function language_help($route_name, RouteMatchInterface $route_match) {
       $output .= '<ul><li>' . t('<em>URL</em> sets the interface language based on a path prefix or domain (for example specifying <em>de</em> for German would result in URLs like <em>example.com/de/contact</em>). The default language does not require a path prefix, but can have one assigned as well. If the language detection is done by domain name, a domain needs to be specified for each language.') . '</li>';
       $output .= '<li>' . t('<em>Session</em> determines the interface language from a request or session parameter (for example <em>example.com?language=de</em> would set the interface language to German based on the use of <em>de</em> as the <em>language</em> parameter).') . '</li>';
       $output .= '<li>' . t('<em>User</em> follows the language configuration set on the user\'s profile page.') . '</li>';
-      $output .= '<li>' . t('<em>Browser</em> sets the interface language based on the browser\'s language settings. Since browsers use different language codes to refer to the same languages, you can add and edit languages codes to map the browser language codes to the <a href=":language_list">language codes</a> used on your site.',  array(':language_list' => \Drupal::url('entity.configurable_language.collection'))) . '</li>';
+      $output .= '<li>' . t('<em>Browser</em> sets the interface language based on the browser\'s language settings. Since browsers use different language codes to refer to the same languages, you can add and edit languages codes to map the browser language codes to the <a href=":language_list">language codes</a> used on your site.', array(':language_list' => \Drupal::url('entity.configurable_language.collection'))) . '</li>';
       $output .= '<li>' . t('<em>Account administration pages</em> follows the configuration set as <em>Administration pages language</em> on the profile page of an administrative user. This method is similar to the <em>User</em> method, but only sets the interface text language on administration pages, independent of the interface text language on other pages.') . '</li>';
       $output .= '<li>' . t('<em>Selected language</em> allows you to specify the site\'s default language or a specific language as the fall-back language. This method should be listed last.') . '</li></ul></dd>';
       $output .= '</dl>';

core/modules/language/src/Entity/ConfigurableLanguage.php

@@ -63,14 +63,14 @@ class ConfigurableLanguage extends ConfigEntityBase implements ConfigurableLangu
   /**
    * The direction of language, either DIRECTION_LTR or DIRECTION_RTL.
    *
-   * @var integer
+   * @var int
    */
   protected $direction = self::DIRECTION_LTR;
 
   /**
    * The weight of the language, used in lists of languages.
    *
-   * @var integer
+   * @var int
    */
   protected $weight = 0;
 

core/modules/language/src/Tests/EntityDefaultLanguageTest.php

@@ -28,7 +28,7 @@ class EntityDefaultLanguageTest extends KernelTestBase {
   /**
    * {@inheritdoc}
    */
-  public function setUp() {
+  protected function setUp() {
     parent::setUp();
 
     $this->installEntitySchema('user');

core/modules/language/src/Tests/LanguageConfigurationElementTest.php

@@ -117,7 +117,7 @@ class LanguageConfigurationElementTest extends WebTestBase {
     $this->assertTrue($configurable_language->isDefault(), 'The en language entity is flagged as the default language.');
 
     $this->config('system.site')->set('default_langcode', 'cc')->save();
-    ContentLanguageSettings::loadByEntityTypeBundle('entity_test','custom_bundle')
+    ContentLanguageSettings::loadByEntityTypeBundle('entity_test', 'custom_bundle')
       ->setLanguageAlterable(TRUE)
       ->setDefaultLangcode(LanguageInterface::LANGCODE_SITE_DEFAULT)
       ->save();

core/modules/language/src/Tests/Views/FilterLanguageTest.php

@@ -45,6 +45,18 @@ class FilterLanguageTest extends LanguageTestBase {
         'name' => $name,
       ));
       $this->assertIdenticalResultset($view, $expected, array('views_test_data_name' => 'name'));
+
+      $expected = [
+        '***LANGUAGE_site_default***',
+        '***LANGUAGE_language_interface***',
+        '***LANGUAGE_language_content***',
+        'en',
+        'xx-lolspeak',
+        'und',
+        'zxx'
+      ];
+      $this->assertIdentical(array_keys($view->filter['langcode']->getValueOptions()), $expected);
+
       $view->destroy();
     }
   }

core/modules/language/tests/src/Unit/Config/LanguageConfigOverrideTest.php

@@ -56,7 +56,7 @@ class LanguageConfigOverrideTest extends UnitTestCase {
   /**
    * {@inheritdoc}
    */
-  public function setUp() {
+  protected function setUp() {
     $this->storage = $this->getMock('Drupal\Core\Config\StorageInterface');
     $this->eventDispatcher = $this->getMock('Symfony\Component\EventDispatcher\EventDispatcherInterface');
     $this->typedConfig = $this->getMock('\Drupal\Core\Config\TypedConfigManagerInterface');