Update to Drupal 8.0.0-rc3. For more information, see https://www.drupal.org/node/2608078

core/modules/language/src/Form/NegotiationUrlForm.php

@@ -136,7 +136,7 @@ class NegotiationUrlForm extends ConfigFormBase {
   }
 
   /**
-   * Implements \Drupal\Core\Form\FormInterface::validateForm().
+   * {@inheritdoc}
    */
   public function validateForm(array &$form, FormStateInterface $form_state) {
     $languages = $this->languageManager->getLanguages();

core/modules/language/src/Plugin/LanguageNegotiation/LanguageNegotiationSession.php

@@ -144,9 +144,9 @@ class LanguageNegotiationSession extends LanguageNegotiationMethodBase implement
     foreach ($this->languageManager->getNativeLanguages() as $language) {
       $langcode = $language->getId();
       $links[$langcode] = array(
-        // We need to clone the $url object to avoid using the same one for all links.
-        // When the links are rendered, options are set on the $url object,
-        // so if we use the same one, they would be set for all links.
+        // We need to clone the $url object to avoid using the same one for all
+        // links. When the links are rendered, options are set on the $url
+        // object, so if we use the same one, they would be set for all links.
         'url' => clone $url,
         'title' => $language->getName(),
         'attributes' => array('class' => array('language-link')),

core/modules/language/src/Plugin/LanguageNegotiation/LanguageNegotiationUrl.php

@@ -101,7 +101,7 @@ class LanguageNegotiationUrl extends LanguageNegotiationMethodBase implements In
   }
 
   /**
-   * Implements Drupal\Core\PathProcessor\InboundPathProcessorInterface::processInbound().
+   * {@inheritdoc}
    */
   public function processInbound($path, Request $request) {
     $config = $this->config->get('language.negotiation')->get('url');
@@ -121,7 +121,7 @@ class LanguageNegotiationUrl extends LanguageNegotiationMethodBase implements In
   }
 
   /**
-   * Implements Drupal\Core\PathProcessor\InboundPathProcessorInterface::processOutbound().
+   * {@inheritdoc}
    */
   public function processOutbound($path, &$options = array(), Request $request = NULL, BubbleableMetadata $bubbleable_metadata = NULL) {
     $url_scheme = 'http';
@@ -200,9 +200,9 @@ class LanguageNegotiationUrl extends LanguageNegotiationMethodBase implements In
 
     foreach ($this->languageManager->getNativeLanguages() as $language) {
       $links[$language->getId()] = array(
-        // We need to clone the $url object to avoid using the same one for all links.
-        // When the links are rendered, options are set on the $url object,
-        // so if we use the same one, they would be set for all links.
+        // We need to clone the $url object to avoid using the same one for all
+        // links. When the links are rendered, options are set on the $url
+        // object, so if we use the same one, they would be set for all links.
         'url' => clone $url,
         'title' => $language->getName(),
         'language' => $language,

core/modules/language/src/Plugin/migrate/source/Language.php

@@ -0,0 +1,57 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\language\Plugin\migrate\source\Language.
+ */
+
+namespace Drupal\language\Plugin\migrate\source;
+
+use Drupal\migrate_drupal\Plugin\migrate\source\DrupalSqlBase;
+
+/**
+ * @MigrateSource(
+ *   id = "language",
+ *   source_provider = "locale"
+ * )
+ */
+class Language extends DrupalSqlBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function fields() {
+    return array(
+      'language' => $this->t('The language code.'),
+      'name' => $this->t('The English name of the language.'),
+      'native' => $this->t('The native name of the language.'),
+      'direction' => $this->t('The language direction. (0 = LTR, 1 = RTL)'),
+      'enabled' => $this->t('Whether the language is enabled.'),
+      'plurals' => $this->t('Number of plural indexes in this language.'),
+      'formula' => $this->t('PHP formula to get plural indexes.'),
+      'domain' => $this->t('Domain to use for this language.'),
+      'prefix' => $this->t('Path prefix used for this language.'),
+      'weight' => $this->t('The language weight when listed.'),
+      'javascript' => $this->t('Location of the JavaScript translation file.'),
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getIds() {
+    return array(
+      'language' => array(
+        'type' => 'string',
+      ),
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function query() {
+    return $this->select('languages')->fields('languages');
+  }
+
+}

core/modules/language/src/ProxyClass/LanguageConverter.php

@@ -2,7 +2,7 @@
 
 /**
  * @file
- * Contains Drupal\language\ProxyClass\LanguageConverter.
+ * Contains \Drupal\language\ProxyClass\LanguageConverter.
  */
 
 /**

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

@@ -394,9 +394,9 @@ class LanguageSwitchingTest extends WebTestBase {
   }
 
   /**
-   * Test language switcher links for session based negotiation.
+   * Tests language switcher links for session based negotiation.
    */
-  function testLanguageSessionSwitchLinks() {
+  public function testLanguageSessionSwitchLinks() {
     // Add language.
     $edit = array(
       'predefined_langcode' => 'fr',

core/modules/language/src/Tests/Migrate/MigrateLanguageTest.php

@@ -0,0 +1,56 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\language\Tests\Migrate\MigrateLanguageTest.
+ */
+
+namespace Drupal\language\Tests\Migrate;
+
+use Drupal\language\ConfigurableLanguageInterface;
+use Drupal\language\Entity\ConfigurableLanguage;
+use Drupal\migrate_drupal\Tests\d6\MigrateDrupal6TestBase;
+
+/**
+ * @group migrate_drupal_6
+ */
+class MigrateLanguageTest extends MigrateDrupal6TestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['language'];
+
+  /**
+   * Asserts various properties of a configurable language entity.
+   *
+   * @param string $id
+   *   The language ID.
+   * @param string $label
+   *   The language name.
+   * @param string $direction
+   *   (optional) The language's direction (one of the DIRECTION_* constants in
+   *   ConfigurableLanguageInterface). Defaults to LTR.
+   * @param int $weight
+   *   (optional) The weight of the language. Defaults to 0.
+   */
+  protected function assertLanguage($id, $label, $direction = ConfigurableLanguageInterface::DIRECTION_LTR, $weight = 0) {
+    /** @var \Drupal\language\ConfigurableLanguageInterface $language */
+    $language = ConfigurableLanguage::load($id);
+    $this->assertTrue($language instanceof ConfigurableLanguageInterface);
+    $this->assertIdentical($label, $language->label());
+    $this->assertIdentical($direction, $language->getDirection());
+    $this->assertIdentical(0, $language->getWeight());
+    $this->assertFalse($language->isLocked());
+  }
+
+  /**
+   * Tests migration of Drupal 6 languages to configurable language entities.
+   */
+  public function testLanguageMigration() {
+    $this->executeMigration('language');
+    $this->assertLanguage('en', 'English');
+    $this->assertLanguage('fr', 'French');
+  }
+
+}

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

@@ -31,7 +31,7 @@ abstract class LanguageTestBase extends ViewKernelTestBase {
   }
 
   /**
-   * Overrides \Drupal\views\Tests\ViewTestBase::schemaDefinition().
+   * {@inheritdoc}
    */
   protected function schemaDefinition() {
     $schema = parent::schemaDefinition();
@@ -46,7 +46,7 @@ abstract class LanguageTestBase extends ViewKernelTestBase {
   }
 
   /**
-   * Overrides \Drupal\views\Tests\ViewTestBase::schemaDefinition().
+   * {@inheritdoc}
    */
   protected function viewsData() {
     $data = parent::viewsData();
@@ -68,7 +68,7 @@ abstract class LanguageTestBase extends ViewKernelTestBase {
   }
 
   /**
-   * Overrides \Drupal\views\Tests\ViewTestBase::dataSet().
+   * {@inheritdoc}
    */
   protected function dataSet() {
     $data = parent::dataSet();