fix: Pass promoted property default value

[aragon999]

I ran into the issue, when changing normal properties to promoted properties: shopware/shopware#15889 in combination with the roave-backward-compatibility-check.

I think actually the test Roave\BetterReflectionTest\Reflection\ReflectionPropertyTest::testIsPromoted had a bug, but I still added a new one, according to the contribution guidelines.

[Ocramius]

Build failure is not related to your work, @aragon999: patch is valid.

Man, the infection+psalm issue is plaguing this repository now.

[aragon999]

I see, thank you for the quick response, and also thank you for the correction of the import order 🙈

I'm afraid I don't know enough about the combination of "infection+psalm" to be of help in that regard, but thank you for maintaining the project :-)

[aragon999]

I noticed that with this change, reflection helper fails when the default value is an object. I will look into it, how it can be solved.

[Ocramius]

I may need to roll back the dependencies in here: will first try and see if I can reproduce the problem locally, or if it's a CI issue.

[Ocramius]

reflection helper fails when the default value is an object.

That's normal: BetterReflection cannot instantiate any objects, since that would imply autoloading, which is forbidden by the core invariant of this library.

The entire point of BetterReflection is to reflect without causing side-effects (which occur in ext-reflection instead)