private static void addDescriptionFileGutterIcon(PsiElement highlightingElement,
                                                   PsiFile descriptionFile,
                                                   Collection<? super RelatedItemLineMarkerInfo<?>> result) {
    final RelatedItemLineMarkerInfo<PsiElement> info = NavigationGutterIconBuilder
      .create(DevKitIcons.Gutter.DescriptionFile, CONVERTER, RELATED_ITEM_PROVIDER)
      .setTarget(descriptionFile)
      .setTooltipText(DevKitBundle.message("gutter.related.navigation.popup.description.tooltip"))
      .setAlignment(GutterIconRenderer.Alignment.RIGHT)
      .createLineMarkerInfo(highlightingElement);
    result.add(info);
  }
private static void addDescriptionFileGutterIcon(PsiElement highlightingElement,
                                                   PsiFile descriptionFile,
                                                   Collection<? super RelatedItemLineMarkerInfo<?>> result)