{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":")"}]}
        ) if tcx.type_of(param.def_id).skip_binder() == tcx.types.usize => {
            GenericParamDefKind::Const { .. },
            let snippet = sess.source_map().span_to_snippet(tcx.hir_span(len.hir_id));