{"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"never!(\"Missed"}]}
                            never!("Missed RPIT in `insert_inference_vars_for_rpit`");
                        if let Entry::Vacant(e) = self.result.type_of_rpit.entry(id) {
                            e.insert(TyKind::Error.intern(Interner));