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

vendor/symfony/http-kernel/HttpKernelInterface.php

@@ -0,0 +1,47 @@
+<?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\HttpKernel;
+
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+/**
+ * HttpKernelInterface handles a Request to convert it to a Response.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @api
+ */
+interface HttpKernelInterface
+{
+    const MASTER_REQUEST = 1;
+    const SUB_REQUEST = 2;
+
+    /**
+     * Handles a Request to convert it to a Response.
+     *
+     * When $catch is true, the implementation must catch all exceptions
+     * and do its best to convert them to a Response instance.
+     *
+     * @param Request $request A Request instance
+     * @param int     $type    The type of the request
+     *                         (one of HttpKernelInterface::MASTER_REQUEST or HttpKernelInterface::SUB_REQUEST)
+     * @param bool    $catch   Whether to catch exceptions or not
+     *
+     * @return Response A Response instance
+     *
+     * @throws \Exception When an Exception occurs during processing
+     *
+     * @api
+     */
+    public function handle(Request $request, $type = self::MASTER_REQUEST, $catch = true);
+}