[RFC] Parse trait class annotations

[kinncj]

The parser isn't parsing trait class annotations.
Fixed by doctrine/annotations#63

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[kinncj]

ping @guilhermeblanco @FabioBatSilva

[kinncj]

@FabioBatSilva, @guilhermeblanco, any updates regarding this PR?

[guilhermeblanco]

Was supposed to review and merge yesterday, but I forgot.
Will do it during the weekend.

[guilhermeblanco]

This is more dangerous than beneficial.
I'd suggest (like I've done, since we worked together) to add the annotation at the top of every entity. It's safer.

[kinncj]

Some developers are more copy and paster than coders.
Anyway, you are splitting one unique behaviour in two different participants then... the trait with properties and HasLifecycleCallbacks(callbacks) and the annotation for HasLifecycleCallbacks in the main participant (class). which means: the class annotation won't work without the trait and the trait won't do anything if the class doesn't annotate that... so instead of a Trait, it's better to just add the HasLifecycleCallbacks(the callback methods) to the main participant then.

Anyway, we can talk in off.