{"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"pub(crate)"}]}
    pub(crate) reg_var_to_origin: RefCell<FxIndexMap<ty::RegionVid, RegionCtxt>>,
    pub(crate) infcx: InferCtxt<'tcx>,
    pub(crate) param_env: ParamEnv<'tcx>,