@SuppressWarnings("unused") // might be useful again later
  private static void highlightJetbrainsOnly(DomElement element, DomElementAnnotationHolder holder) {
    holder.createProblem(element, ProblemHighlightType.WARNING,
                         DevKitBundle.message("inspections.plugin.xml.jetbrains.only.api",
                                              ApiStatus.Experimental.class.getCanonicalName()),
                         null)
      .highlightWholeElement();
  }
@SuppressWarnings("unused") // might be useful again later
  private static void highlightJetbrainsOnly(DomElement element, DomElementAnnotationHolder holder)