Rule for colon vs namespace extends/include etc

[jackbentley]

https://symfony.com/doc/3.4/templating/namespaced_paths.html

In the past, Symfony used to suggest using colons instead of @ namespaces. Adding a rule to check @ namespaces are being used instead of colons would be potentially useful

Prefer
@App/default/layout.html.twig
Over
AppBundle:default:layout.html.twig

[OwlyCode]

Hello and thanks for that idea!

That would be a nice feature to have. But this only concerns Symfony projects so I guess this would be an optional rule that would be activated using some configuration. I won't add this for 4.0.0 (unless someone does it) because I want to reduce the scope as much as I can to ship the beta the soonest possible.