Sweet! I tried playing around with implementing a copy-and-patch style JIT in Rust before, but unfortunately between the lack of `ghccc`-style register-heavy ca

Sweet! I tried playing around with implementing a copy-and-patch style JIT in Rust before, but unfortunately between the lack of `ghccc`-style register-heavy calling convention and (still!) having no way to guarantee tailcalls, rustc doesn't make it very easy and I gave up.