A colleague and i are writing, as an unofficial side project, a Haskell→Bluespec compiler, using GHC as our Haskell front-end. The source language of the part we are writing is GHC Core. We need to somehow expose some Bluespec terms and types to the Haskell source program. We had a few ideas: 1. Some "NO_MANGLE" pragma which would tell GHC to not mangle the emitted name, e.g. `x = {-# NO_MANGLE #-} x` to expose `x` 2. `foreign import prim`, not quite sure how yet 3. "CORE" pragmas, e.g. `x = {-# CORE "foo" #-} x` to expose `x` 4. "ANN" pragmas, e.g. `{-# ANN x "no_mangle" #-} x = x` to expose `x` 1 and 2 would mean modifying GHC which we'd rather not do. For 3, we're not sure how to find the "CORE"-pragmatic annotations in a `Core` AST. 4 seems it would work but be a little cumbersome, as the annotation is not on the `Core` AST. Anyone know a good way to do this?