Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

vendor/symfony/psr-http-message-bridge/Tests/Fixtures/Response.php

@@ -0,0 +1,45 @@
+<?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\Bridge\PsrHttpMessage\Tests\Fixtures;
+
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class Response extends Message implements ResponseInterface
+{
+    private $statusCode;
+
+    public function __construct($version = '1.1', array $headers = array(), StreamInterface $body = null, $statusCode = 200)
+    {
+        parent::__construct($version, $headers, $body);
+
+        $this->statusCode = $statusCode;
+    }
+
+    public function getStatusCode()
+    {
+        return $this->statusCode;
+    }
+
+    public function withStatus($code, $reasonPhrase = '')
+    {
+        throw new \BadMethodCallException('Not implemented.');
+    }
+
+    public function getReasonPhrase()
+    {
+        throw new \BadMethodCallException('Not implemented.');
+    }
+}