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

vendor/doctrine/common/tests/Doctrine/Tests/DoctrineTestCase.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Doctrine\Tests;
+
+/**
+ * Base testcase class for all Doctrine testcases.
+ */
+abstract class DoctrineTestCase extends \PHPUnit_Framework_TestCase
+{
+}