librustc: De-`@mut` `n_null_glues` in the stats
librustc: De-`@mut` `n_real_glues`
librustc: De-`@mut` `n_fns` in the stats
librustc: De-`@mut` `n_monos` in the stats
librustc: De-`@mut` `n_inlines` in the stats
librustc: De-`@mut` `n_closures` in the stats
librustc: De-`@mut` `n_llvm_insns` in the stats
librustc: Remove the unused `llvm_insn_ctxt` from the stats
librustc: De-`@mut` `llvm_insns` in the stats
librustc: De-`@mut` `fn_stats` in the stats
librustc: De-`@mut` the translation stats
librustc: De-`@mut` the trait map
librustc: De-`@mut` `next_id` in the type context
librustc: De-`@mut` `Liveness::successors`
librustc: De-`@mut` `inherent_candidates` and `extension_candidates` in
method lookup
librustc: De-`@mut` `all_loans` in the borrow checker
librustc: De-`@mut` `DynamicFailureHandler::finished`
librustc: De-`@mut` the reachability worklist
librustc: De-`@mut` the `idstack` in constant checking
librustc: De-`@mut` `label_ribs` in the resolver