[HttpKernel] remove noisy frame in controller stack traces

Author: nicolas-grekas

src/Symfony/Component/HttpKernel/HttpKernel.php

@@ -134,7 +134,7 @@ private function handleRaw(Request $request, $type = self::MASTER_REQUEST)
         $arguments = $this->resolver->getArguments($request, $controller);
 
         // call controller
-        $response = call_user_func_array($controller, $arguments);
+        $response = \call_user_func_array($controller, $arguments);
 
         // view
         if (!$response instanceof Response) {