minor symfony#61723 [HttpKernel] Refine ControllerEvent::getAttributes() and ControllerArgumentsEvent::getAttributes() return types (7-zete-7)

This PR was merged into the 7.4 branch.

Discussion
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[HttpKernel] Refine `ControllerEvent::getAttributes()` and `ControllerArgumentsEvent::getAttributes()` return types

| Q             | A
| ------------- | ---
| Branch?       | 7.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        | Fix symfony#61722
| License       | MIT

The return type for the `Symfony\Component\HttpKernel\Event\ControllerEvent::getAttributes()` method is refined so that when the `$className` argument is passed, the return type matches the passed list of objects of the passed class.

Commits
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533abf4 [HttpKernel] Refine ControllerEvent::getAttributes() and ControllerArgumentsEvent::getAttributes() return types

Author: nicolas-grekas

src/Symfony/Component/HttpKernel/Event/ControllerArgumentsEvent.php

@@ -97,13 +97,11 @@ public function getNamedArguments(): array
     }
 
     /**
-     * @template T of class-string|null
+     * @template T of object
      *
-     * @param T $className
+     * @param class-string<T>|null $className
      *
-     * @return array<class-string, list<object>>|list<object>
-     *
-     * @psalm-return (T is null ? array<class-string, list<object>> : list<object>)
+     * @return ($className is null ? array<class-string, list<object>> : list<T>)
      */
     public function getAttributes(?string $className = null): array
     {

src/Symfony/Component/HttpKernel/Event/ControllerEvent.php

@@ -79,13 +79,11 @@ public function setController(callable $controller, ?array $attributes = null):
     }
 
     /**
-     * @template T of class-string|null
+     * @template T of object
      *
-     * @param T $className
+     * @param class-string<T>|null $className
      *
-     * @return array<class-string, list<object>>|list<object>
-     *
-     * @psalm-return (T is null ? array<class-string, list<object>> : list<object>)
+     * @return ($className is null ? array<class-string, list<object>> : list<T>)
      */
     public function getAttributes(?string $className = null): array
     {