Merge branch '5.4' into 6.3

* 5.4:
  Fix implicitly-required parameters
  List CS fix in .git-blame-ignore-revs
  Apply php-cs-fixer fix --rules nullable_type_declaration_for_default_null_value
  [Messenger][AmazonSqs] Allow async-aws/sqs version 2

Author: nicolas-grekas

DebugClassLoader.php

@@ -307,7 +307,7 @@ public function loadClass(string $class): void
         $this->checkClass($class, $file);
     }
 
-    private function checkClass(string $class, string $file = null): void
+    private function checkClass(string $class, ?string $file = null): void
     {
         $exists = null === $file || class_exists($class, false) || interface_exists($class, false) || trait_exists($class, false);
 
@@ -794,7 +794,7 @@ private function getOwnInterfaces(string $class, ?string $parent): array
         return $ownInterfaces;
     }
 
-    private function setReturnType(string $types, string $class, string $method, string $filename, ?string $parent, \ReflectionType $returnType = null): void
+    private function setReturnType(string $types, string $class, string $method, string $filename, ?string $parent, ?\ReflectionType $returnType = null): void
     {
         if ('__construct' === $method) {
             return;

Error/FatalError.php

@@ -18,7 +18,7 @@ class FatalError extends \Error
     /**
      * @param array $error An array as returned by error_get_last()
      */
-    public function __construct(string $message, int $code, array $error, int $traceOffset = null, bool $traceArgs = true, array $trace = null)
+    public function __construct(string $message, int $code, array $error, ?int $traceOffset = null, bool $traceArgs = true, ?array $trace = null)
     {
         parent::__construct($message, $code);
 

ErrorHandler.php

@@ -107,7 +107,7 @@ class ErrorHandler
     /**
      * Registers the error handler.
      */
-    public static function register(self $handler = null, bool $replace = true): self
+    public static function register(?self $handler = null, bool $replace = true): self
     {
         if (null === self::$reservedMemory) {
             self::$reservedMemory = str_repeat('x', 32768);
@@ -178,7 +178,7 @@ public static function call(callable $function, mixed ...$arguments): mixed
         }
     }
 
-    public function __construct(BufferingLogger $bootstrappingLogger = null, bool $debug = false)
+    public function __construct(?BufferingLogger $bootstrappingLogger = null, bool $debug = false)
     {
         if ($bootstrappingLogger) {
             $this->bootstrappingLogger = $bootstrappingLogger;
@@ -565,7 +565,7 @@ public function handleException(\Throwable $exception): void
      *
      * @internal
      */
-    public static function handleFatalError(array $error = null): void
+    public static function handleFatalError(?array $error = null): void
     {
         if (null === self::$reservedMemory) {
             return;

ErrorRenderer/HtmlErrorRenderer.php

@@ -48,7 +48,7 @@ class HtmlErrorRenderer implements ErrorRendererInterface
      * @param bool|callable   $debug        The debugging mode as a boolean or a callable that should return it
      * @param string|callable $outputBuffer The output buffer as a string or a callable that should return it
      */
-    public function __construct(bool|callable $debug = false, string $charset = null, string|FileLinkFormatter $fileLinkFormat = null, string $projectDir = null, string|callable $outputBuffer = '', LoggerInterface $logger = null)
+    public function __construct(bool|callable $debug = false, ?string $charset = null, string|FileLinkFormatter|null $fileLinkFormat = null, ?string $projectDir = null, string|callable $outputBuffer = '', ?LoggerInterface $logger = null)
     {
         $this->debug = \is_bool($debug) ? $debug : $debug(...);
         $this->charset = $charset ?: (\ini_get('default_charset') ?: 'UTF-8');
@@ -228,7 +228,7 @@ private function getFileLink(string $file, int $line): string|false
      * @param int    $line The line number
      * @param string $text Use this text for the link rather than the file path
      */
-    private function formatFile(string $file, int $line, string $text = null): string
+    private function formatFile(string $file, int $line, ?string $text = null): string
     {
         $file = trim($file);
 

ErrorRenderer/SerializerErrorRenderer.php

@@ -34,7 +34,7 @@ class SerializerErrorRenderer implements ErrorRendererInterface
      *                                                  formats not supported by Request::getMimeTypes() should be given as mime types
      * @param bool|callable                     $debug  The debugging mode as a boolean or a callable that should return it
      */
-    public function __construct(SerializerInterface $serializer, string|callable $format, ErrorRendererInterface $fallbackErrorRenderer = null, bool|callable $debug = false)
+    public function __construct(SerializerInterface $serializer, string|callable $format, ?ErrorRendererInterface $fallbackErrorRenderer = null, bool|callable $debug = false)
     {
         $this->serializer = $serializer;
         $this->format = \is_string($format) ? $format : $format(...);

Exception/FlattenException.php

@@ -42,12 +42,12 @@ class FlattenException
     private ?string $asString = null;
     private Data $dataRepresentation;
 
-    public static function create(\Exception $exception, int $statusCode = null, array $headers = []): static
+    public static function create(\Exception $exception, ?int $statusCode = null, array $headers = []): static
     {
         return static::createFromThrowable($exception, $statusCode, $headers);
     }
 
-    public static function createFromThrowable(\Throwable $exception, int $statusCode = null, array $headers = []): static
+    public static function createFromThrowable(\Throwable $exception, ?int $statusCode = null, array $headers = []): static
     {
         $e = new static();
         $e->setMessage($exception->getMessage());
@@ -85,7 +85,7 @@ public static function createFromThrowable(\Throwable $exception, int $statusCod
         return $e;
     }
 
-    public static function createWithDataRepresentation(\Throwable $throwable, int $statusCode = null, array $headers = [], VarCloner $cloner = null): static
+    public static function createWithDataRepresentation(\Throwable $throwable, ?int $statusCode = null, array $headers = [], ?VarCloner $cloner = null): static
     {
         $e = static::createFromThrowable($throwable, $statusCode, $headers);