{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"combine_substructure:"}]}
        combine_substructure: combine_substructure(Box::new(|cx, span, substr| {
        fieldless_variants_strategy: FieldlessVariantsStrategy::Unify,
            cs_partial_cmp(cx, span, substr, discr_then_data)