{"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"//"}]}
        // `inner_mutability` is `Mut`: there might be other pointers to that allocation, and
        // means we can *not* easily intern immutably here if `prov.immutable()` is true and
        // we'd have to somehow check that they are *all* immutable before deciding that this