{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"Some(idx)"}]}
        Some(idx) if is_shared_ref(place.ty_before_projection(idx)) => {
        // If that pointer is a shared reference, then we don't need those fields.
            truncate_place_to_len_and_update_capture_kind(&mut place, &mut curr_mode, idx + 1)