{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"ty::Bound(debruijn_idx,"}]}
            ty::Bound(debruijn_idx, bound_ty) => {
            ty::Param(param_ty) => TyKind::Param(param_ty.stable(tables, cx)),
                TyKind::Bound(debruijn_idx.as_usize(), bound_ty.stable(tables, cx))