Review request for JDK-8134502: introduce abstraction for basic NodeVisitor usage

[Marcus Lagergren]

+1

> On 25 Sep 2015, at 18:54, Attila Szegedi <attila.szegedi at oracle.com> wrote:
> 
> Please review JDK-8134502 "introduce abstraction for basic NodeVisitor usage" at <http://cr.openjdk.java.net/~attila/8134502/webrev.jdk9> for <https://bugs.openjdk.java.net/browse/JDK-8134502>
> 
> Thanks,
>  Attila.