{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"this.label_ribs.last_mut().unwrap().bindings.insert(ident,"}]}
                this.label_ribs.last_mut().unwrap().bindings.insert(ident, id);
                let ident = label.ident.normalize_to_macro_rules();
                f(this);