Merge branch '5.1'

* 5.1:
  [SecurityBundle] fix tests
  relax some test assertions

Author: nicolas-grekas

Tests/DependencyInjection/SecurityExtensionTest.php

@@ -366,7 +366,7 @@ public function testRememberMeCookieInheritFrameworkSessionCookie($config, $same
         $container->setParameter('kernel.bundles_metadata', []);
         $container->setParameter('kernel.project_dir', __DIR__);
         $container->setParameter('kernel.cache_dir', __DIR__);
-        $container->setParameter('kernel.container_class', 'app');
+        $container->setParameter('kernel.container_class', 'FooContainer');
 
         $container->loadFromExtension('security', [
             'firewalls' => [