Merge branch '2.7' into 2.8

* 2.7:
  [Twig+FrameworkBundle] Fix forward compat with Form 2.8
  [2.6] Static Code Analysis for Components
  [Security/Http] Fix test relying on a private property
  [Serializer] Fix bugs reported in symfony/symfony@b5990be#commitcomment-12301266

Conflicts:
	src/Symfony/Bridge/Twig/Resources/views/Form/form_div_layout.html.twig
	src/Symfony/Bundle/FrameworkBundle/Resources/views/Form/widget_attributes.html.php
	src/Symfony/Component/Security/Http/Tests/Firewall/AnonymousAuthenticationListenerTest.php

Author: nicolas-grekas

Http/Tests/Firewall/AnonymousAuthenticationListenerTest.php

@@ -54,10 +54,9 @@ public function testHandleWithTokenStorageHavingNoToken()
         $authenticationManager
             ->expects($this->once())
             ->method('authenticate')
-            ->with(self::logicalAnd(
-                       $this->isInstanceOf('Symfony\Component\Security\Core\Authentication\Token\AnonymousToken'),
-                       $this->attributeEqualTo('secret', 'TheSecret')
-            ))
+            ->with($this->callback(function ($token) {
+                return 'TheSecret' === $token->getSecret();
+            }))
             ->will($this->returnValue($anonymousToken))
         ;