{"ast_node_type":"other","tokens":[{"end":41,"kind":"keyword","start":0,"text":")"}]}
    ) -> (Ty<'tcx>, Ty<'tcx>, Ty<'tcx>) {
        expected: Expectation<'tcx>,
        debug!("check_overloaded_binop(expr.hir_id={}, op={:?})", expr.hir_id, op);