protected boolean unregisterInTree() {
if (!isValid()) return false;
IntervalTreeImpl tree = myNode.getTree();
tree.checkMax(true);
boolean b = myDocument.removeRangeMarker(this);
tree.checkMax(true);
return b;
}
@Override
public boolean removeRangeMarker(@NotNull RangeMarkerEx rangeMarker) {
return myDelegate.removeRangeMarker(((RangeMarkerWindow) rangeMarker).getDelegate());
}