Actualización

vendor/symfony/dependency-injection/Variable.php

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+<?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;
+
+/**
+ * Represents a variable.
+ *
+ *     $var = new Variable('a');
+ *
+ * will be dumped as
+ *
+ *     $a
+ *
+ * by the PHP dumper.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class Variable
+{
+    private $name;
+
+    /**
+     * @param string $name
+     */
+    public function __construct($name)
+    {
+        $this->name = $name;
+    }
+
+    public function __toString()
+    {
+        return $this->name;
+    }
+}