diff --git a/core/modules/locale/lib/Drupal/locale/Tests/LocaleImportFunctionalTest.php b/core/modules/locale/lib/Drupal/locale/Tests/LocaleImportFunctionalTest.php
index cf5927b..a62ca1f 100644
--- a/core/modules/locale/lib/Drupal/locale/Tests/LocaleImportFunctionalTest.php
+++ b/core/modules/locale/lib/Drupal/locale/Tests/LocaleImportFunctionalTest.php
@@ -315,9 +315,9 @@ public function testConfigPoFile() {
   /**
    * Helper function: import a standalone .po file in a given language.
    *
-   * @param $contents
+   * @param string $contents
    *   Contents of the .po file to import.
-   * @param $options
+   * @param array $options
    *   Additional options to pass to the translation import form.
    */
   public function importPoFile($contents, array $options = array()) {
diff --git a/core/modules/locale/lib/Drupal/locale/Tests/LocalePluralFormatTest.php b/core/modules/locale/lib/Drupal/locale/Tests/LocalePluralFormatTest.php
index 9dcf268..b7c2093 100644
--- a/core/modules/locale/lib/Drupal/locale/Tests/LocalePluralFormatTest.php
+++ b/core/modules/locale/lib/Drupal/locale/Tests/LocalePluralFormatTest.php
@@ -276,9 +276,9 @@ public function testPluralEditExport() {
   /**
    * Imports a standalone .po file in a given language.
    *
-   * @param $contents
+   * @param string $contents
    *   Contents of the .po file to import.
-   * @param $options
+   * @param array $options
    *   Additional options to pass to the translation import form.
    */
   public function importPoFile($contents, array $options = array()) {
diff --git a/core/modules/locale/lib/Drupal/locale/Tests/LocaleUpdateBase.php b/core/modules/locale/lib/Drupal/locale/Tests/LocaleUpdateBase.php
index 5fb52d2..4905255 100644
--- a/core/modules/locale/lib/Drupal/locale/Tests/LocaleUpdateBase.php
+++ b/core/modules/locale/lib/Drupal/locale/Tests/LocaleUpdateBase.php
@@ -77,7 +77,7 @@ protected function setTranslationsDirectory($path) {
   /**
    * Adds a language.
    *
-   * @param $langcode
+   * @param string $langcode
    *   The language code of the language to add.
    */
   protected function addLanguage($langcode) {
diff --git a/core/modules/locale/locale.bulk.inc b/core/modules/locale/locale.bulk.inc
index c3319f2..484775e 100644
--- a/core/modules/locale/locale.bulk.inc
+++ b/core/modules/locale/locale.bulk.inc
@@ -25,7 +25,7 @@
  *   - 'finish_feedback': Whether or not to give feedback to the user when the
  *     batch is finished. Optional, defaults to TRUE.
  *
- * @param $force
+ * @param bool $force
  *   (optional) Import all available files, even if they were imported before.
  *
  * @todo
@@ -110,7 +110,7 @@ function locale_translate_get_interface_translation_files($projects = array(), $
 /**
  * Build a locale batch from an array of files.
  *
- * @param $files
+ * @param array $files
  *   Array of file objects to import.
  *
  * @param array $options
@@ -126,7 +126,7 @@ function locale_translate_get_interface_translation_files($projects = array(), $
  *   - 'finish_feedback': Whether or not to give feedback to the user when the
  *     batch is finished. Optional, defaults to TRUE.
  *
- * @return
+ * @return array|bool
  *   A batch structure or FALSE if $files was empty.
  */
 function locale_translate_batch_build($files, $options) {
@@ -182,7 +182,7 @@ function locale_translate_batch_build($files, $options) {
  *   - 'message': Alternative message to display during import. Note, this must
  *     be sanitized text.
  *
- * @param $context
+ * @param array $context
  *   Contains a list of files imported.
  */
 function locale_translate_batch_import($file, $options, &$context) {
@@ -263,7 +263,7 @@ function locale_translate_batch_import($file, $options, &$context) {
 /**
  * Batch callback: Save data of imported files.
  *
- * @param $context
+ * @param array $context
  *   Contains a list of imported files.
  */
 function locale_translate_batch_import_save($context) {
@@ -396,10 +396,10 @@ function locale_translate_batch_finished($success, $results) {
 /**
  * Creates a file object and populates the timestamp property.
  *
- * @param $filepath
+ * @param string $filepath
  *   The filepath of a file to import.
  *
- * @return
+ * @return object
  *   An object representing the file.
  */
 function locale_translate_file_create($filepath) {
diff --git a/core/modules/locale/locale.pages.inc b/core/modules/locale/locale.pages.inc
index 423c889..e0a3468 100644
--- a/core/modules/locale/locale.pages.inc
+++ b/core/modules/locale/locale.pages.inc
@@ -376,7 +376,7 @@ function template_preprocess_locale_translation_update_info(&$variables) {
  *
  * Default template: locale-translation-last-check.html.twig.
  *
- * @param $variables
+ * @param array $variables
  *   An associative array containing:
  *   - last: The timestamp when the site last checked for available updates.
  *