@Override
    public void extensionRemoved(@NotNull KeyedLazyInstance<SyntaxHighlighter> extension, @NotNull PluginDescriptor pluginDescriptor) {
      invalidateCacheForExtension(extension.getKey());
    }
@Override
    public void extensionRemoved(@NotNull KeyedLazyInstance<SyntaxHighlighter> extension, @NotNull PluginDescriptor pluginDescriptor)