{"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"//"}]}
    // more backend-agnostic prefix such as `cg` (i.e. this would be `cgbbs`).
    // FIXME(eddyb) rename `llbbs` and other `ll`-prefixed things to use a
    cached_llbbs: IndexVec<mir::BasicBlock, CachedLlbb<Bx::BasicBlock>>,