message: Fix type set kRealAndQuantizedTypes, (I think) it should have included
  DT_INT16 but it DT_UINT16 is included twice.
diff: @@ -295,7 +295,7 @@ inline const DataTypeSet& QuantizedTypes() { return kQuantizedTypes; }
  // Types that support '<' and '>', including quantized types.
  const DataTypeSet kRealAndQuantizedTypes =
  ToSet(DT_FLOAT) | ToSet(DT_DOUBLE) | ToSet(DT_INT32) | ToSet(DT_INT64) |
  - ToSet(DT_UINT8) | ToSet(DT_UINT16) | ToSet(DT_UINT16) | ToSet(DT_INT8) |
  + ToSet(DT_UINT8) | ToSet(DT_UINT16) | ToSet(DT_INT16) | ToSet(DT_INT8) |
  ToSet(DT_QINT8) | ToSet(DT_QUINT8) | ToSet(DT_QINT16) | ToSet(DT_QUINT16) |
  ToSet(DT_QINT32) | ToSet(DT_HALF) | ToSet(DT_BFLOAT16);
  inline const DataTypeSet& RealAndQuantizedTypes() {
  