Isn't ScriptLoader a good candidate for go?
It was used by Stephane in Marcus to manage 3.9 update process...

Nicolas

2013/3/8 Frank Shearar <frank.shearar at gmail.com>:
> These (rather long) methods are nearly identical. SmalltalkImage is a
> bit more demanding re GC, and double-GCs before the
> large-chunk-of-sameness. Other than that, the only difference I can
> see is a logging statement printing to Transcript.
>
> Oh, it's worse: ReleaseBuilder also has the same code, except that
> ReleaseBuilder inspects SystemNavigation default while the other two
> inspect SystemNavigation default obsoleteBehaviors.
>
> (http://bugs.squeak.org/view.php?id=7754)
>
> frank
>