{"ast_node_type":"other","tokens":[{"end":25,"kind":"keyword","start":0,"text":"match"}]}
        match ct.kind() {
    fn fold_const(&mut self, ct: ty::Const<'tcx>) -> ty::Const<'tcx> {
            ty::ConstKind::Bound(debruijn, bound_const) if debruijn == self.current_index => {