message: Add a reduce_window test case.
diff: @@ -1392,6 +1392,20 @@ struct R1ReduceWindowTestData {
  /*pad_low=*/{4095},
  /*pad_high=*/{0},
  /*reducer=*/Reducer::kMax},
  +
  + // The pattern generated by inclusive reverse scan (cumsum/cumprod).
  + {/*base_bounds=*/{4096}, /*window_bounds=*/{4096},
  + /*strides=*/{1},
  + /*pad_low=*/{0},
  + /*pad_high=*/{4095},
  + /*reducer=*/Reducer::kMax},
  +
  + // The pattern generated by exclusive reverse scan (cumsum/cumprod).
  + {/*base_bounds=*/{4095}, /*window_bounds=*/{4095},
  + /*strides=*/{1},
  + /*pad_low=*/{0},
  + /*pad_high=*/{4095},
  + /*reducer=*/Reducer::kMax},
  };
  string R1ReduceWindowTestDataToString(
  