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

vendor/symfony/serializer/Tests/Fixtures/GroupDummyParent.php

@@ -0,0 +1,49 @@
+<?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\Serializer\Tests\Fixtures;
+
+use Symfony\Component\Serializer\Annotation\Groups;
+
+/**
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class GroupDummyParent
+{
+    /**
+     * @Groups({"a"})
+     */
+    private $kevin;
+    private $coopTilleuls;
+
+    public function setKevin($kevin)
+    {
+        $this->kevin = $kevin;
+    }
+
+    public function getKevin()
+    {
+        return $this->kevin;
+    }
+
+    public function setCoopTilleuls($coopTilleuls)
+    {
+        $this->coopTilleuls = $coopTilleuls;
+    }
+
+    /**
+     * @Groups({"a", "b"})
+     */
+    public function getCoopTilleuls()
+    {
+        return $this->coopTilleuls;
+    }
+}