minor symfony#53612 Apply php-cs-fixer fix --rules nullable_type_declaration_for_default_null_value (nicolas-grekas)

This PR was squashed before being merged into the 5.4 branch.

Discussion
----------

Apply php-cs-fixer fix --rules nullable_type_declaration_for_default_null_value

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | no
| New feature?  |no
| Deprecations? |no
| Issues        | -
| License       | MIT

This one is important to make on 5.4 because it will likely fix a deprecation in a future PHP version, see https://externals.io/message/122214

(do not squash while merging)

Commits
-------

fb9fa26 Fix implicitly-required parameters
6fec735 List CS fix in .git-blame-ignore-revs
f4118e1 Apply php-cs-fixer fix --rules nullable_type_declaration_for_default_null_value

Author: nicolas-grekas

.git-blame-ignore-revs

@@ -0,0 +1,2 @@
+# Apply php-cs-fixer fix --rules nullable_type_declaration_for_default_null_value
+f4118e110a46de3ffb799e7d79bf15128d1646ea

.php-cs-fixer.dist.php

@@ -30,6 +30,7 @@
         '@Symfony:risky' => true,
         'protected_to_private' => false,
         'native_constant_invocation' => ['strict' => false],
+        'nullable_type_declaration_for_default_null_value' => true,
         'header_comment' => ['header' => $fileHeaderComment],
     ])
     ->setRiskyAllowed(true)

src/Symfony/Bridge/Doctrine/ContainerAwareEventManager.php

@@ -50,7 +50,7 @@ public function __construct(ContainerInterface $container, array $subscriberIds
      *
      * @return void
      */
-    public function dispatchEvent($eventName, EventArgs $eventArgs = null)
+    public function dispatchEvent($eventName, ?EventArgs $eventArgs = null)
     {
         if (!$this->initializedSubscribers) {
             $this->initializeSubscribers();

src/Symfony/Bridge/Doctrine/DataCollector/DoctrineDataCollector.php

@@ -39,7 +39,7 @@ class DoctrineDataCollector extends DataCollector
      */
     private $loggers = [];
 
-    public function __construct(ManagerRegistry $registry, DebugDataHolder $debugDataHolder = null)
+    public function __construct(ManagerRegistry $registry, ?DebugDataHolder $debugDataHolder = null)
     {
         $this->registry = $registry;
         $this->connections = $registry->getConnectionNames();
@@ -58,7 +58,7 @@ public function addLogger(string $name, DebugStack $logger)
     /**
      * {@inheritdoc}
      */
-    public function collect(Request $request, Response $response, \Throwable $exception = null)
+    public function collect(Request $request, Response $response, ?\Throwable $exception = null)
     {
         $this->data = [
             'queries' => $this->collectQueries(),

src/Symfony/Bridge/Doctrine/Form/ChoiceList/DoctrineChoiceLoader.php

@@ -35,7 +35,7 @@ class DoctrineChoiceLoader extends AbstractChoiceLoader
      *
      * @param string $class The class name of the loaded objects
      */
-    public function __construct(ObjectManager $manager, string $class, IdReader $idReader = null, EntityLoaderInterface $objectLoader = null)
+    public function __construct(ObjectManager $manager, string $class, ?IdReader $idReader = null, ?EntityLoaderInterface $objectLoader = null)
     {
         $classMetadata = $manager->getClassMetadata($class);
 

src/Symfony/Bridge/Doctrine/Form/ChoiceList/IdReader.php

@@ -78,7 +78,7 @@ public function isIntId(): bool
      *
      * This method assumes that the object has a single-column ID.
      */
-    public function getIdValue(object $object = null): string
+    public function getIdValue(?object $object = null): string
     {
         if (!$object) {
             return '';

src/Symfony/Bridge/Doctrine/IdGenerator/UlidGenerator.php

@@ -21,7 +21,7 @@ final class UlidGenerator extends AbstractIdGenerator
 {
     private $factory;
 
-    public function __construct(UlidFactory $factory = null)
+    public function __construct(?UlidFactory $factory = null)
     {
         $this->factory = $factory;
     }

src/Symfony/Bridge/Doctrine/IdGenerator/UuidGenerator.php

@@ -23,7 +23,7 @@ final class UuidGenerator extends AbstractIdGenerator
     private $factory;
     private $entityGetter;
 
-    public function __construct(UuidFactory $factory = null)
+    public function __construct(?UuidFactory $factory = null)
     {
         $this->protoFactory = $this->factory = $factory ?? new UuidFactory();
     }

src/Symfony/Bridge/Doctrine/Logger/DbalLogger.php

@@ -26,7 +26,7 @@ class DbalLogger implements SQLLogger
     protected $logger;
     protected $stopwatch;
 
-    public function __construct(LoggerInterface $logger = null, Stopwatch $stopwatch = null)
+    public function __construct(?LoggerInterface $logger = null, ?Stopwatch $stopwatch = null)
     {
         $this->logger = $logger;
         $this->stopwatch = $stopwatch;
@@ -37,7 +37,7 @@ public function __construct(LoggerInterface $logger = null, Stopwatch $stopwatch
      *
      * @return void
      */
-    public function startQuery($sql, array $params = null, array $types = null)
+    public function startQuery($sql, ?array $params = null, ?array $types = null)
     {
         if (null !== $this->stopwatch) {
             $this->stopwatch->start('doctrine', 'doctrine');

src/Symfony/Bridge/Doctrine/Messenger/AbstractDoctrineMiddleware.php

@@ -28,7 +28,7 @@ abstract class AbstractDoctrineMiddleware implements MiddlewareInterface
     protected $managerRegistry;
     protected $entityManagerName;
 
-    public function __construct(ManagerRegistry $managerRegistry, string $entityManagerName = null)
+    public function __construct(ManagerRegistry $managerRegistry, ?string $entityManagerName = null)
     {
         $this->managerRegistry = $managerRegistry;
         $this->entityManagerName = $entityManagerName;