private void markSettingsMerged(@NotNull String toolName, @NotNull Element element) {
    //add marker if already merged, but the result is now default (-> empty node)
    String mergedName = InspectionElementsMergerBase.getMergedMarkerName(toolName);
    if (!myUninitializedSettings.containsKey(mergedName)) {
      InspectionElementsMergerBase merger = getMerger(toolName);
      if (merger != null && merger.markSettingsMerged(myUninitializedSettings)) {
        element.addContent(new Element(INSPECTION_TOOL_TAG).setAttribute(CLASS_TAG, mergedName));
      }
    }
  }
private void markSettingsMerged(@NotNull String toolName, @NotNull Element element)