Update to Smarty 3.1.27.

(cherry picked from commit e74fe67)

libs/smarty/sysplugins/smarty_variable.php

@@ -0,0 +1,55 @@
+<?php
+
+/**
+ * class for the Smarty variable object
+ * This class defines the Smarty variable object
+ *
+ * @package    Smarty
+ * @subpackage Template
+ */
+class Smarty_Variable
+{
+    /**
+     * template variable
+     *
+     * @var mixed
+     */
+    public $value = null;
+    /**
+     * if true any output of this variable will be not cached
+     *
+     * @var boolean
+     */
+    public $nocache = false;
+    /**
+     * the scope the variable will have  (local,parent or root)
+     *
+     * @var int
+     */
+    public $scope = Smarty::SCOPE_LOCAL;
+
+    /**
+     * create Smarty variable object
+     *
+     * @param mixed   $value   the value to assign
+     * @param boolean $nocache if true any output of this variable will be not cached
+     * @param int     $scope   the scope the variable will have  (local,parent or root)
+     */
+    public function __construct($value = null, $nocache = false, $scope = Smarty::SCOPE_LOCAL)
+    {
+        $this->value = $value;
+        $this->nocache = $nocache;
+        $this->scope = $scope;
+    }
+
+    /**
+     * <<magic>> String conversion
+     *
+     * @return string
+     */
+    public function __toString()
+    {
+        return (string) $this->value;
+    }
+}
+