Reference.php

1. 8.x drupal/core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Reference.php
2. 8.x drupal/core/vendor/symfony/validator/Symfony/Component/Validator/Tests/Fixtures/Reference.php

<?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;

class Reference {

}