{"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"TyKind::FnDef(..)"}]}
                    TyKind::FnDef(..) => {
                (None, Some(t_cast)) => match self.expr_ty.kind(Interner) {
                        let sig = self.expr_ty.callable_sig(table.db).expect("FnDef had no sig");