minor #1252 Fixed not explicitly declared properties (deguif)

This PR was merged into the 1.3 branch.

Discussion
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Fixed not explicitly declared properties

Commits
-------

b61f087c Fixed not explicitly declared properties

tests/Silex/Tests/CallbackResolverTest.php

@@ -15,6 +15,9 @@ use Silex\CallbackResolver;
 
 class CallbackResolverTest extends \PHPUnit_Framework_Testcase
 {
+    private $app;
+    private $resolver;
+
     public function setup()
     {
         $this->app = new \Pimple();

tests/Silex/Tests/ServiceControllerResolverTest.php

@@ -21,6 +21,11 @@ use Symfony\Component\HttpFoundation\Request;
  */
 class ServiceControllerResolverTest extends \PHPUnit_Framework_Testcase
 {
+    private $app;
+    private $mockCallbackResolver;
+    private $mockResolver;
+    private $resolver;
+
     public function setup()
     {
         $this->mockResolver = $this->getMockBuilder('Symfony\Component\HttpKernel\Controller\ControllerResolverInterface')