MAGETWO-33064: Implement obsolete test for refactored controllers

Author: Dooffy

dev/tests/static/testsuite/Magento/Test/Legacy/_files/whitelist/refactored_controllers.php

@@ -10,8 +10,8 @@
  * Controllers that were refactored and use ResultInterface
  */
 return [
-    '\app\code\Magento\Catalog\Controller',
-    '\app\code\Magento\Backend\Controller',
-    '\app\code\Magento\Sales\Controller',
-    '\app\code\Magento\Customer\Controller',
+    '/app/code/Magento/Catalog/Controller',
+    '/app/code/Magento/Backend/Controller',
+    '/app/code/Magento/Sales/Controller',
+    '/app/code/Magento/Customer/Controller',
 ];