Subset of the old Clang Plugin needles

Most needles from current clang plugin minus some of the inheritance needles.
It doesn't look like it is. It looks like you have excerpts of actual CSV as input, and you're just comparing against fragments of FIXTURE. For the sakes of both lexical proximity and loose coupling, I think it would be better to break up and localize the bits of FIXTURE. I'm happy to chat about this if I'm misunderstanding something.