Do.php

<?php

class       Twig_Node_Do  extends         Twig_Node
{
                        public function __construct(Twig_Node_Expression $expr, $lineno, $tag = null)
                        {
                                            parent::__construct
                                             (array('expr' => $expr), 
                                        array(), $lineno, $tag);
                        }

    public function compile(Twig_Compiler $compiler)
    {
$compiler
    ->addDebugInfo($this)
    ->write('')
    ->subcompile($this->getNode('expr'))
    ->raw(";\n")
;
    }
}