Remove not longer required extension and fix handling of willImplement and willExtend

[ondrejmirtes]

With this fix in PHPStan itself, the willExtend/willImplement method PHPDocs are sufficient for correct understanding: phpstan/phpstan-src@dab99cb

[stof]

@ondrejmirtes do you know when you will release the 2.1.5 version, as this release is a blocker for merging this PR (due to the min version in the new requirement) ?

[ondrejmirtes]

I just wanted to demonstrate that it works, I think this PR is better overall #367 and does the same thing.

As a rule of thumb the next PHPStan release always a few days away at max :)

[alexander-schranz]

Nice, thank you 👍 ,

I also tested the additional cases from #366 in #370 and it seems also there work as expected.

[ondrejmirtes]

PHPStan 2.1.5 is out https://github.com/phpstan/phpstan/releases/tag/2.1.5

[ondrejmirtes]

I don't see PHPStan ^2.1.5 required in composer.json here in master.

[alexander-schranz]

@ondrejmirtes @stof thank you both here for you support. Tagged a new version 2.1.0.

[ondrejmirtes]

@alexander-schranz I believe PHPStan ^2.1.5 should be required in composer.json.

[alexander-schranz]

@ondrejmirtes you are right removed the false line when solving the merge conflicts 🙈 : fixed in #376