Anonymous services doesn't work

[Koc]

Xml like below looks like valid for Symfony

     <service id="metal.catalog.data_fetcher" class="Metal\ProjectBundle\DataFetching\DataFetcher">
            <argument type="service" id="sphinxy.default_connection" />
            <argument>
                <service class="Metal\CatalogBundle\DataFetching\DataFetcher">
                </service>
            </argument>
        </service>

But ctrl+click on class name of inner service doesn't work. Also there is no marker near of the class which referencing to the service.

[Koc]

still actual