rustc: `hir().local_def_id_to_hir_id()` -> `tcx.local_def_id_to_hir_id()` cleanup Noticed this while working on https://github.com/rust-lang/rust/pull/118188. The history here is that the method was moved from HIR map to tcx in https://github.com/rust-lang/rust/pull/93373 as a part of incremental compilation work, so it's unlikely to go back.