Issue #2936525 by priya.chat, benjifisher: Confusing documentation for setConfigOverrideLanguage()

core/lib/Drupal/Core/Language/LanguageManager.php

@@ -351,12 +351,17 @@ class LanguageManager implements LanguageManagerInterface {
   }
 
   /**
-   * {@inheritdoc}
+   * Sets the configuration override language.
    *
    * This function is a noop since the configuration cannot be overridden by
    * language unless the Language module is enabled. That replaces the default
    * language manager with a configurable language manager.
    *
+   * @param \Drupal\Core\Language\LanguageInterface $language
+   *   The language to override configuration with.
+   *
+   * @return $this
+   *
    * @see \Drupal\language\ConfigurableLanguageManager::setConfigOverrideLanguage()
    */
   public function setConfigOverrideLanguage(LanguageInterface $language = NULL) {

core/modules/language/src/ConfigurableLanguageManager.php

@@ -426,7 +426,12 @@ class ConfigurableLanguageManager extends LanguageManager implements Configurabl
   }
 
   /**
-   * {@inheritdoc}
+   * Sets the configuration override language.
+   *
+   * @param \Drupal\Core\Language\LanguageInterface $language
+   *   The language to override configuration with.
+   *
+   * @return $this
    */
   public function setConfigOverrideLanguage(LanguageInterface $language = NULL) {
     $this->configFactoryOverride->setLanguage($language);