Update to drupal-org-drupal 8.0.0-rc2. For more information, see https://www.drupal.org/node/2598668

vendor/symfony/serializer/Tests/Fixtures/TraversableDummy.php

@@ -1,23 +0,0 @@
-<?php
-
-/*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Symfony\Component\Serializer\Tests\Fixtures;
-
-class TraversableDummy implements \IteratorAggregate
-{
-    public $foo = 'foo';
-    public $bar = 'bar';
-
-    public function getIterator()
-    {
-        return new \ArrayIterator(get_object_vars($this));
-    }
-}