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

vendor/symfony/http-foundation/Tests/File/FakeFile.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\Component\HttpFoundation\Tests\File;
+
+use Symfony\Component\HttpFoundation\File\File as OrigFile;
+
+class FakeFile extends OrigFile
+{
+    private $realpath;
+
+    public function __construct($realpath, $path)
+    {
+        $this->realpath = $realpath;
+        parent::__construct($path, false);
+    }
+
+    public function isReadable()
+    {
+        return true;
+    }
+
+    public function getRealpath()
+    {
+        return $this->realpath;
+    }
+
+    public function getSize()
+    {
+        return 42;
+    }
+
+    public function getMTime()
+    {
+        return time();
+    }
+}