private void addOverlap(RegionInfo a, RegionInfo b) {
    this.report.overlaps.add(new Pair<>(a, b));
  }
Check row.
@param metaTableRow Row from hbase:meta table.
@return Returns default regioninfo found in row parse as a convenience to save on having to do
        a double-parse of Result.
hbase-server/src/main/java/org/apache/hadoop/hbase/master/janitor/ReportMakingVisitor.java