diff --git a/core/lib/Drupal/Core/Language/LanguageDefault.php b/core/lib/Drupal/Core/Language/LanguageDefault.php
index b1b7102b3a0add574e9985b0c46cb5a5e2f538f7..a72b8b1552f753bf574123a6213609627ff900e2 100644
--- a/core/lib/Drupal/Core/Language/LanguageDefault.php
+++ b/core/lib/Drupal/Core/Language/LanguageDefault.php
@@ -1,5 +1,10 @@
 <?php
 
+/**
+ * @file
+ * Contains \Drupal\Core\Language\LanguageDefault.
+ */
+
 namespace Drupal\Core\Language;
 
 /**
@@ -24,10 +29,11 @@ class LanguageDefault {
   /**
    * Constructs the default language object.
    *
-   * @param array $default_values
+   * @param array $values
+   *   The properties used to construct the default language.
    */
-  public function __construct(array $default_values) {
-    $this->set(new Language($default_values));
+  public function __construct(array $values) {
+    $this->set(new Language($values));
   }
 
   /**
diff --git a/core/lib/Drupal/Core/Language/LanguageManager.php b/core/lib/Drupal/Core/Language/LanguageManager.php
index 4d86ea32a788ae2017d58f3a6279361ffde0d20c..3d943d02de927befabf0a86478cbe15dc47bbaad 100644
--- a/core/lib/Drupal/Core/Language/LanguageManager.php
+++ b/core/lib/Drupal/Core/Language/LanguageManager.php
@@ -50,7 +50,7 @@ public function __construct(LanguageDefault $default_language) {
   /**
    * {@inheritdoc}
    */
-  function setTranslation(TranslationInterface $translation) {
+  public function setTranslation(TranslationInterface $translation) {
     $this->translation = $translation;
   }
 
@@ -150,7 +150,7 @@ public function getLanguage($langcode) {
   /**
    * {@inheritdoc}
    */
-  function getLanguageName($langcode) {
+  public function getLanguageName($langcode) {
     if ($langcode == Language::LANGCODE_NOT_SPECIFIED) {
       return $this->t('None');
     }
@@ -172,7 +172,7 @@ public function getDefaultLockedLanguages($weight = 0) {
     $locked_language = array(
       'default' => FALSE,
       'locked' => TRUE,
-     );
+    );
     $languages[Language::LANGCODE_NOT_SPECIFIED] = new Language(array(
       'id' => Language::LANGCODE_NOT_SPECIFIED,
       'name' => $this->t('Not specified'),
@@ -214,9 +214,10 @@ public function getLanguageSwitchLinks($type, $path) {
    * Some common languages with their English and native names.
    *
    * Language codes are defined by the W3C language tags document for
-   * interoperability. Language codes typically have a language and optionally,
-   * a script or regional variant name. See
-   * http://www.w3.org/International/articles/language-tags/ for more information.
+   * interoperability. Language codes typically have a language and, optionally,
+   * a script or regional variant name. See:
+   * http://www.w3.org/International/articles/language-tags/ for more
+   * information.
    *
    * This list is based on languages available from localize.drupal.org. See
    * http://localize.drupal.org/issues for information on how to add languages
@@ -332,9 +333,9 @@ public static function getStandardLanguageList() {
   /**
    * {@inheritdoc}
    *
-   * This function is a noop since the configuration can not be overridden by
+   * This function is a noop since the configuration cannot be overridden by
    * language unless the Language module is enabled. That replaces the default
-   * language manger with a configurable language manager.
+   * language manager with a configurable language manager.
    *
    * @see \Drupal\language\ConfigurableLanguageManager::setConfigOverrideLanguage()
    */
diff --git a/core/lib/Drupal/Core/Language/LanguageManagerInterface.php b/core/lib/Drupal/Core/Language/LanguageManagerInterface.php
index e638edfa7995597b35fe2cf5de3aba6328ac704f..33e86356379b887c5bbbbf1b6cdcd7057e8602c5 100644
--- a/core/lib/Drupal/Core/Language/LanguageManagerInterface.php
+++ b/core/lib/Drupal/Core/Language/LanguageManagerInterface.php
@@ -17,10 +17,10 @@ interface LanguageManagerInterface {
   /**
    * Injects the string translation service.
    *
-   * @param \use Drupal\Core\StringTranslation\TranslationInterface $translation
+   * @param \Drupal\Core\StringTranslation\TranslationInterface $translation
    *   The string translation service.
    */
-  function setTranslation(TranslationInterface $translation);
+  public function setTranslation(TranslationInterface $translation);
 
   /**
    * Initializes each language type to a language object.
@@ -77,17 +77,17 @@ public function reset($type = NULL);
   public function getDefaultLanguage();
 
   /**
-    * Returns a list of languages set up on the site.
-    *
-    * @param $flags
-    *   (optional) Specifies the state of the languages that have to be
-    *   returned. It can be: Language::STATE_CONFIGURABLE,
-    *   Language::STATE_LOCKED, Language::STATE_ALL.
-    *
-    * @return array
-    *   An associative array of languages, keyed by the language code, ordered
-    *   by weight ascending and name ascending.
-    */
+   * Returns a list of languages set up on the site.
+   *
+   * @param int $flags
+   *   (optional) Specifies the state of the languages that have to be returned.
+   *   It can be: Language::STATE_CONFIGURABLE,
+   *   Language::STATE_LOCKED, Language::STATE_ALL.
+   *
+   * @return array
+   *   An associative array of languages, keyed by the language code, ordered
+   *   by weight ascending and name ascending.
+   */
   public function getLanguages($flags = Language::STATE_CONFIGURABLE);
 
   /**
@@ -110,7 +110,7 @@ public function getLanguage($langcode);
    * @return string
    *   The printed name of the language.
    */
-  function getLanguageName($langcode);
+  public function getLanguageName($langcode);
 
   /**
    * Returns a list of the default locked languages.
@@ -158,15 +158,15 @@ public function getFallbackCandidates($langcode = NULL, array $context = array()
   /**
    * Returns the language switch links for the given language type.
    *
-   * @param $type
+   * @param string $type
    *   The language type.
-   * @param $path
+   * @param string $path
    *   The internal path the switch links will be relative to.
    *
    * @return array
    *   A keyed array of links ready to be themed.
    */
-  function getLanguageSwitchLinks($type, $path);
+  public function getLanguageSwitchLinks($type, $path);
 
   /**
    * Sets the configuration override language.