module and profile tests

Closes #3503744

core/modules/block/tests/src/Functional/BlockHiddenRegionTest.php

@@ -15,6 +15,8 @@ class BlockHiddenRegionTest extends BrowserTestBase {
 
   /**
    * An administrative user to configure the test environment.
+   *
+   * @var \Drupal\user\Entity\User|false
    */
   protected $adminUser;