Issue #2653346 by Wim Leers, borisson_, jibran: Add...

Issue #2653346 by Wim Leers, borisson_, jibran: Add UncacheableDependencyTrait: the opposite of UnchangingCacheableDependencyTrait

core/lib/Drupal/Core/Cache/UncacheableDependencyTrait.php

 <?php
 
-/**
- * @file
- * Contains \Drupal\Core\Cache\UncacheableDependencyTrait.
- */
-
 namespace Drupal\Core\Cache;
 
 /**