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

vendor/symfony/dependency-injection/Exception/ServiceCircularReferenceException.php

@@ -0,0 +1,41 @@
+<?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\DependencyInjection\Exception;
+
+/**
+ * This exception is thrown when a circular reference is detected.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ServiceCircularReferenceException extends RuntimeException
+{
+    private $serviceId;
+    private $path;
+
+    public function __construct($serviceId, array $path, \Exception $previous = null)
+    {
+        parent::__construct(sprintf('Circular reference detected for service "%s", path: "%s".', $serviceId, implode(' -> ', $path)), 0, $previous);
+
+        $this->serviceId = $serviceId;
+        $this->path = $path;
+    }
+
+    public function getServiceId()
+    {
+        return $this->serviceId;
+    }
+
+    public function getPath()
+    {
+        return $this->path;
+    }
+}