{"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"OfInstance"}]}
    OfInstance { instance: ty::Instance<'tcx>, extra_args: &'tcx ty::List<Ty<'tcx>> },
    OfFnPtr { sig: ty::PolyFnSig<'tcx>, extra_args: &'tcx ty::List<Ty<'tcx>> },
}