public static void unregisterElementTypes(@NotNull ClassLoader loader, @NotNull PluginDescriptor pluginDescriptor) {
    for (int i = 0; i < ourRegistry.length; i++) {
      IElementType type = ourRegistry[i];
      if (type != null && type.getClass().getClassLoader() == loader) {
        ourRegistry[i] = TombstoneElementType.create(type, pluginDescriptor);
      }
    }
  }
public static void unregisterElementTypes(@NotNull ClassLoader loader, @NotNull PluginDescriptor pluginDescriptor)