I have updated SlangBrowser to maintain it as a package (mostly) separate from VMMaker. The intent is that it can now be loaded into any of the various VMMaker projects, hopefully including Cog, Hydra, and Exupery.
SlangBrowser enables viewing of generated C source for the interpreter and plugins directly from system browsers.
The change sets are at http://wiki.squeak.org/squeak/5916 and also attached here for reference.
If you are using VMMaker from the SqueakSource project, the supporting changes are in VMMaker-dtl.111.mcz, and SlangBrowser is saved as a separate package in the VMMaker project. The CodeHolderMenuRegistration changes (also attached) are separate from VMMaker, and are on Mantis http://bugs.squeak.org/view.php?id=5932.