Raise PHPStan level to 2

[szepeviktor]

Under level 4 👺 viktor says: broken application/package
(not polite)

[szepeviktor]

Yes, many return types are interfaces, not concrete implementations.
So: many methods are missing.

But there are exceptions 🤯

wordpress-interop/test/Test/Bridge/Repository/ShopOrderRepositoryTest.php

Line 15 in b8e5fff

private ShopOrderRepository $repository;

[szepeviktor]

Let me pull out my secret laser gun 🔫

wordpress-interop/test/Test/Bridge/Repository/TermRepositoryTest.php

Lines 21 to 22 in b8e5fff

	/** @var TermRepository */
	private RepositoryInterface $repository;

[szepeviktor]

Errors on Level 2 reduced from 140 to 51 🎉

Supporting RepositoryClass attribute: phpstan/phpstan#9279

I do not know how to go on as there is no mechanism in PHPStan
getRepository(string $entityClassName): RepositoryInterface to find out the repository class from entity class.

... although one can write a tiny type specifying extension.

[szepeviktor]

The above so called "PHPStan extension" finds out Repository names using str_replace :(
But reduces the number of problems to 38!

[szepeviktor]

@williarin Could you help fixing remaining ones?