[11.x] Declare bindings and singletons properties in Service Provider

[Anton5360]

This PR basically repeats this one. I want to give it a second chance, maybe finally 5 years later its time has come :)

Just from developer perspective - I'm pretty tired to go every time to the documentation and check the name for these "magick" variables as I'm not able to see them in the source code + I found not many people even knowing about this small feature.

It does not hurt a performance in any way - perhaps it might have hurt legacy php versions, but definitely not a php 8.x

[driesvints]

Reverting this one because it seems to break things for people. #52286

[daniser]

@driesvints Maybe merge this into 12.x branch?

[driesvints]

I don't think we'll reconsider this one sorry.

[Anton5360]

@driesvints Is that a final decision or still might be worthy to recreate the PR for version 12 ?
I assume such issue case is more an exception than a common practice, so again I assume it`s not a breaking change for the most of projects/libraries

[rodrigopedra]

You can send a PR to add these annotations to the base ServiceProvider class to have your IDE behave as expected:

/**
 * @property array $singletons = []
 * @property array $bindings = []
 */
abstract class ServiceProvider

Maybe the maintainers would be open to that

[devajmeireles]

You can send a PR to add these annotations to the base ServiceProvider class to have your IDE behave as expected:

/**
 * @property array $singletons = []
 * @property array $bindings = []
 */
abstract class ServiceProvider

Maybe the maintainers would be open to that

Sure thing to do!