setInit example

if ($this->scanner->consume(";")) {

                $update = $this->isolateContext(
                    array("allowIn" => true), "parseExpression"
                );

                if ($this->scanner->consume(")") &&
                    $body = $this->parseStatement()
                ) {

                    $node = $this->createNode("ForStatement", $forToken);
                    $node->setInit($init);
                    $node->setTest($test);
                    $node->setUpdate($update);
                    $node->setBody($body);
                    return $this->completeNode($node);
                }
            }
        } else {

            $this->scanner->setState($state);

            if ($decl = $this->parseForBinding()) {