{"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"tcx.impl_trait_ref(impl_def_id).unwrap().instantiate(tcx,"}]}
        tcx.impl_trait_ref(impl_def_id).unwrap().instantiate(tcx, fresh_impl_args).self_ty();
    let fresh_adt_ty =