Allow subscribing events by class

[norkunas]

Subscribing by event names was and old way before subscribing by event class name was not supported, so this enables it.

[yann-eugone]

Thank you for this Tomas.

I'm 100% aware that event names is not "the way to go" since few Symfony version.
But I've been struggling with BC to be able to remove it from the source code.
Now that you added the ability to register listener for both event name and event class, how can we inform developer that rely on event name that they must update their code for next major ?

[norkunas]

Thank you for this Tomas.

I'm 100% aware that event names is not "the way to go" since few Symfony version. But I've been struggling with BC to be able to remove it from the source code. Now that you added the ability to register listener for both event name and event class, how can we inform developer that rely on event name that they must update their code for next major ?

I think we could just add @deprecated on constants then? For example https://github.com/symfony/symfony/blob/5.4/src/Symfony/Component/HttpKernel/HttpKernelInterface.php MASTER_REQUEST constant

[yann-eugone]

Thank you very much Tomas :)