@NotNull
  protected String formatBaseElementText() {
    HierarchyNodeDescriptor descriptor = getBaseDescriptor();
    if (descriptor == null) return toString();
    PsiElement element = descriptor.getPsiElement();
    if (element == null) return descriptor.toString();
    return ElementDescriptionUtil.getElementDescription(element, UsageViewTypeLocation.INSTANCE) + " " +
           ElementDescriptionUtil.getElementDescription(element, UsageViewLongNameLocation.INSTANCE);
  }
@NotNull
  protected String formatBaseElementText()