private RangeMarkerTree<RangeMarkerEx> treeFor(@NotNull RangeMarkerEx rangeMarker) {
    return rangeMarker instanceof PersistentRangeMarker ? myPersistentRangeMarkers : myRangeMarkers;
  }
private RangeMarkerTree<RangeMarkerEx> treeFor(@NotNull RangeMarkerEx rangeMarker)