Merge branch '4.3' into 4.4

* 4.3:
  [FrameworkBundle] Detect indirect env vars in routing
  Remove calls to deprecated function assertAttributeX
  [Intl] Order alpha2 to alpha3 mapping
  [Routing] added a warning about the getRouteCollection() method
  Allow sutFqcnResolver to return array
  [HttpFoundation] Revert getClientIp @return docblock

Author: fabpot

Legacy/CoverageListenerTrait.php

@@ -76,7 +76,7 @@ public function startTest($test)
         $cache = $r->getValue();
         $cache = array_replace_recursive($cache, array(
             \get_class($test) => array(
-                'covers' => array($sutFqcn),
+                'covers' => \is_array($sutFqcn) ? $sutFqcn : array($sutFqcn),
             ),
         ));
         $r->setValue($testClass, $cache);