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

vendor/symfony/validator/Tests/Fixtures/ConstraintAValidator.php

@@ -0,0 +1,37 @@
+<?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\Validator\Tests\Fixtures;
+
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+use Symfony\Component\Validator\ExecutionContextInterface;
+
+class ConstraintAValidator extends ConstraintValidator
+{
+    public static $passedContext;
+
+    public function initialize(ExecutionContextInterface $context)
+    {
+        parent::initialize($context);
+
+        self::$passedContext = $context;
+    }
+
+    public function validate($value, Constraint $constraint)
+    {
+        if ('VALID' != $value) {
+            $this->context->addViolation('message', array('param' => 'value'));
+
+            return;
+        }
+    }
+}