Merge branch '2.8' into 3.0

* 2.8:
  [ci] Get ICU/intl from github instead of nebm.ist.utl.pt/~glopes
  [Debug] Fix case sensitivity checks
  [Debug] Fix handling of php7 throwables
  fix high deps tests
  fix testing deprecation messages
  [Process] remove dead code
  [WebProfilerBundle] Add missing use statement.
  [ClassLoader] Fix storing not-found classes in APC cache
  [Form] cs fixes in date types
  [phpunit] disable prophecy

Author: fabpot

Controller/RouterController.php

@@ -11,6 +11,7 @@
 
 namespace Symfony\Bundle\WebProfilerBundle\Controller;
 
+use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Matcher\UrlMatcherInterface;
 use Symfony\Component\Routing\Matcher\TraceableUrlMatcher;