Merge branch 'next-16272/cherry-pick-fixes-4' into '6.4.3.0'

NEXT-16426 - Fix symfony compatibility for symfony < 5.3.4

See merge request shopware/6/product/platform!5973

src/Core/Framework/Event/BusinessEventDispatcher.php

@@ -71,7 +71,10 @@ public function addSubscriber(EventSubscriberInterface $subscriber): void
         $this->dispatcher->addSubscriber($subscriber);
     }
 
-    public function removeListener(string $eventName, callable $listener): void
+    /**
+     * @param callable $listener can not use native type hint as it is incompatible with symfony <5.3.4
+     */
+    public function removeListener(string $eventName, $listener): void
     {
         $this->dispatcher->removeListener($eventName, $listener);
     }
@@ -86,7 +89,10 @@ public function getListeners(?string $eventName = null): array
         return $this->dispatcher->getListeners($eventName);
     }
 
-    public function getListenerPriority(string $eventName, callable $listener): ?int
+    /**
+     * @param callable $listener can not use native type hint as it is incompatible with symfony <5.3.4
+     */
+    public function getListenerPriority(string $eventName, $listener): ?int
     {
         return $this->dispatcher->getListenerPriority($eventName, $listener);
     }

src/Core/Framework/Event/NestedEventDispatcher.php

@@ -45,7 +45,10 @@ public function addSubscriber(EventSubscriberInterface $subscriber): void
         $this->dispatcher->addSubscriber($subscriber);
     }
 
-    public function removeListener(string $eventName, callable $listener): void
+    /**
+     * @param callable $listener can not use native type hint as it is incompatible with symfony <5.3.4
+     */
+    public function removeListener(string $eventName, $listener): void
     {
         $this->dispatcher->removeListener($eventName, $listener);
     }
@@ -60,7 +63,10 @@ public function getListeners(?string $eventName = null): array
         return $this->dispatcher->getListeners($eventName);
     }
 
-    public function getListenerPriority(string $eventName, callable $listener): ?int
+    /**
+     * @param callable $listener can not use native type hint as it is incompatible with symfony <5.3.4
+     */
+    public function getListenerPriority(string $eventName, $listener): ?int
     {
         return $this->dispatcher->getListenerPriority($eventName, $listener);
     }

src/Core/Framework/Validation/HappyPathValidator.php

@@ -61,7 +61,10 @@ public function hasMetadataFor($value)
         return $this->inner->hasMetadataFor($value);
     }
 
-    public function validateProperty(object $object, $propertyName, $groups = null)
+    /**
+     * @param object $object can not use native type hint as it is incompatible with symfony <5.3.4
+     */
+    public function validateProperty($object, $propertyName, $groups = null)
     {
         return $this->inner->validateProperty($object, $propertyName, $groups);
     }