[FrameworkBundle] fixed the discovery of the PHPUnit configuration file when using aggregate options like in -vc app/ (closes #7562)
Merge branch '2.1' into 2.2

* 2.1:
  [HttpFoundation] Fixed copy pasted comment from FlashBag in AttributeBag
  [FrameworkBundle] fixed the discovery of the PHPUnit configuration file when using aggregate options like in -vc app/ (closes #7562)
  [WebProfilerBundle] removed next pointer class in a template