@carymrobbins I spent time going through the codebase today and I think I have a nice idea of how it pieces together. I'll see if I can start work sometime this weekend adapting GHC 7.10.3's alex lexer. I need to work on implementing foreign exports in GHCVM before I get started. Hopefully @LeanderK will be done with his changes by then.
Ok cool. We'll need to figure out a way to feed in the GHC version into the lexer. We can probably fetch that from the Project object (which I don't think is being based to the lexer/parser right now).