{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"debug!(\"insert_late_bound_region({:?},"}]}
        debug!("insert_late_bound_region({:?}, {:?})", r, vid);
    fn insert_late_bound_region(&mut self, r: ty::Region<'tcx>, vid: ty::RegionVid) {
        assert_eq!(self.indices.insert(r, vid), None);