minor #10311 [PropertyInfo] Inject the entity manager instead of the class metadata factory (dunglas, javiereguiluz)

This PR was merged into the master branch.

Discussion
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[PropertyInfo] Inject the entity manager instead of the class metadata factory

symfony/symfony#27829

Commits
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44df1a7 Added the missing versionadded directive
1f87e0c [PropertyInfo] Inject the entity manager instead of the class metadata factory

Author: javiereguiluz

components/property_info.rst

@@ -486,13 +486,18 @@ with the ``property_info`` service in the Symfony Framework.
         'driver' => 'pdo_sqlite',
         // ...
     ], $config);
-    $doctrineExtractor = new DoctrineExtractor($entityManager->getMetadataFactory());
+    $doctrineExtractor = new DoctrineExtractor($entityManager);
 
     // List information.
     $doctrineExtractor->getProperties($class);
     // Type information.
     $doctrineExtractor->getTypes($class, $property);
 
+.. versionadded:: 4.2
+    The option to pass Doctrine's EntityManager to ``DoctrineExtractor`` was
+    introduced in Symfony 4.2. Previously you needed to pass the class metadata
+    factory associated to the EntityManager.
+
 .. _`components-property-information-extractors-creation`:
 
 Creating Your Own Extractors