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

vendor/symfony/routing/Matcher/Dumper/MatcherDumperInterface.php

@@ -0,0 +1,39 @@
+<?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\Routing\Matcher\Dumper;
+
+use Symfony\Component\Routing\RouteCollection;
+
+/**
+ * MatcherDumperInterface is the interface that all matcher dumper classes must implement.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface MatcherDumperInterface
+{
+    /**
+     * Dumps a set of routes to a string representation of executable code
+     * that can then be used to match a request against these routes.
+     *
+     * @param array $options An array of options
+     *
+     * @return string Executable code
+     */
+    public function dump(array $options = array());
+
+    /**
+     * Gets the routes to dump.
+     *
+     * @return RouteCollection A RouteCollection instance
+     */
+    public function getRoutes();
+}