{"ast_node_type":"variable","tokens":[{"end":99,"kind":"keyword","start":0,"text":"}"}]}
                } else if let Some(&hidden_type) = tables.concrete_opaque_types.get(&self.def_id) {
                    self.insert_found(ty::OpaqueHiddenType::new_error(tcx, guar));
                    self.insert_found(hidden_type);