private boolean moreCellsInRow(final Cell nextKv, Cell currentRowCell) {
    return nextKv != null && CellUtil.matchingRows(nextKv, currentRowCell);
  }
Based on the nextKv in the heap, and the current row, decide whether or not there are more
cells to be read in the heap. If the row of the nextKv in the heap matches the current row then
there are more cells to be read in the row.
@return true When there are more cells in the row to be read
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionScannerImpl.java