{"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"assert!(matches!(self.cached_llbbs[succ],"}]}
            assert!(matches!(self.cached_llbbs[succ], CachedLlbb::None));
            let succ = successors.next().unwrap();
            self.cached_llbbs[succ] = CachedLlbb::Skip;