message: Add a test case in select and scatter.
diff: @@ -146,6 +146,12 @@ INSTANTIATE_TEST_CASE_P(
  Padding::kValid,
  {3, 3, 1, 1},
  {3, 3, 1, 1}},
  + // Uncovered by b/126212776.
  + SelectAndScatterTestParam{{15, 1, 1, 1},
  + {2, 1, 1, 1},
  + Padding::kValid,
  + {14, 1, 1, 1},
  + {1, 1, 1, 1}},
  SelectAndScatterTestParam{{7, 3, 4, 4},
  {3, 1, 4, 4},
  Padding::kValid,
  