private ErrorStripeMarkerImpl findErrorStripeMarker(@NotNull RangeHighlighterEx highlighter, boolean lookEverywhere) {
    TextRange range = lookEverywhere ? new ProperTextRange(0, myEditor.getDocument().getTextLength()) : highlighter.getTextRange();
    MarkupIterator<ErrorStripeMarkerImpl> iterator = treeFor(highlighter).overlappingIterator(range);
    try {
      return ContainerUtil.find(iterator, marker -> marker.getHighlighter() == highlighter);
    }
    finally {
      iterator.dispose();
    }
  }
private ErrorStripeMarkerImpl findErrorStripeMarker(@NotNull RangeHighlighterEx highlighter, boolean lookEverywhere)