{"ast_node_type":"variable","tokens":[{"end":86,"kind":"keyword","start":0,"text":"let"}]}
        let child = move_path_children_matching(move_data, mpi, |x| x.is_field_to(f));
    let field_needs_drop_and_init = |(f, f_ty, mpi)| {
        let Some(mpi) = child else {