private static TombstoneElementType create(@NotNull IElementType type, @NotNull PluginDescriptor pluginDescriptor) {
      return new TombstoneElementType("tombstone of " + type +" ("+type.getClass()+") belonged to unloaded "+pluginDescriptor);
    }
private static TombstoneElementType create(@NotNull IElementType type, @NotNull PluginDescriptor pluginDescriptor)