[TASK] Fix phpstan checkFunctionArgumentTypes errors in ext:core ExpressionLanguage

This patch fixes incompatible type usage in function arguments
and is preparatory work for introducing native type hints and
strict mode in all core files.

Releases: master, 10.4
Resolves: #92274
Change-Id: Ia8e8fd47389dab32080fa82976d1c72aad5457c9
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/65668


Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Sascha Egerer <sascha@sascha-egerer.de>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: Sascha Egerer <sascha@sascha-egerer.de>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>

typo3/sysext/core/Classes/ExpressionLanguage/ProviderInterface.php

@@ -25,9 +25,9 @@ use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
 interface ProviderInterface
 {
     /**
-     * An array of objects which implements the ExpressionFunctionProviderInterface
+     * An array of class names which implements the ExpressionFunctionProviderInterface
      *
-     * @return ExpressionFunctionProviderInterface[]
+     * @return array<int, class-string>
      */
     public function getExpressionLanguageProviders(): array;