Merge branch '5.4' into 6.0

* 5.4:
  [Mailer] Include all transports' debug messages in RoundRobin transport exception
  [FrameworkBundle] fix: fix help message
  Use relative timestamps
  [Cache] Fix dealing with ext-redis' multi/exec returning a bool
  [Messenger][Amqp] Added missing rpc_timeout option
  [Serializer] Prevent GetSetMethodNormalizer from creating invalid magic method call
  [HttpFoundation] Fix dumping array cookies
  [WebProfilerBundle] Fix dump header not being displayed
  TraceableHttpClient: increase decorator's priority
  Use static methods inside data providers
  [FrameworkBundle] Allow configuring `framework.exceptions` with a config builder
  bug #48313 [Mime] Fix MessagePart serialization
  [ErrorHandler][DebugClassLoader] Fix some new return types support
  Fix getting the name of closures on PHP 8.1.11+
  [Translator] Fix typo "internal" / "interval"
  fix dumping top-level tagged values

Author: nicolas-grekas

DebugClassLoader.php

@@ -56,7 +56,7 @@ class DebugClassLoader
         'null' => 'null',
         'resource' => 'resource',
         'boolean' => 'bool',
-        'true' => 'bool',
+        'true' => 'true',
         'false' => 'false',
         'integer' => 'int',
         'array' => 'array',
@@ -74,6 +74,7 @@ class DebugClassLoader
         '$this' => 'static',
         'list' => 'array',
         'class-string' => 'string',
+        'never' => 'never',
     ];
 
     private const BUILTIN_RETURN_TYPES = [
@@ -91,6 +92,9 @@ class DebugClassLoader
         'parent' => true,
         'mixed' => true,
         'static' => true,
+        'null' => true,
+        'true' => true,
+        'never' => true,
     ];
 
     private const MAGIC_METHODS = [
@@ -765,6 +769,12 @@ private function setReturnType(string $types, string $class, string $method, str
             return;
         }
 
+        if ('null' === $types) {
+            self::$returnTypes[$class][$method] = ['null', 'null', $class, $filename];
+
+            return;
+        }
+
         if ($nullable = 0 === strpos($types, 'null|')) {
             $types = substr($types, 5);
         } elseif ($nullable = '|null' === substr($types, -5)) {

Internal/TentativeTypes.php

@@ -753,6 +753,7 @@ class TentativeTypes
             'isVariadic' => 'bool',
             'isStatic' => 'bool',
             'getClosureThis' => '?object',
+            'getClosureCalledClass' => '?ReflectionClass',
             'getClosureScopeClass' => '?ReflectionClass',
             'getDocComment' => 'string|false',
             'getEndLine' => 'int|false',

Tests/DebugClassLoaderTest.php

@@ -398,6 +398,10 @@ class_exists('Test\\'.ReturnType::class, true);
             'Method "Symfony\Component\ErrorHandler\Tests\Fixtures\ReturnTypeParent::mixed()" might add "mixed" as a native return type declaration in the future. Do the same in child class "Test\Symfony\Component\ErrorHandler\Tests\ReturnType" now to avoid errors or add an explicit @return annotation to suppress this message.',
             'Method "Symfony\Component\ErrorHandler\Tests\Fixtures\ReturnTypeParent::nullableMixed()" might add "mixed" as a native return type declaration in the future. Do the same in child class "Test\Symfony\Component\ErrorHandler\Tests\ReturnType" now to avoid errors or add an explicit @return annotation to suppress this message.',
             'Method "Symfony\Component\ErrorHandler\Tests\Fixtures\ReturnTypeParent::static()" might add "static" as a native return type declaration in the future. Do the same in child class "Test\Symfony\Component\ErrorHandler\Tests\ReturnType" now to avoid errors or add an explicit @return annotation to suppress this message.',
+            'Method "Symfony\Component\ErrorHandler\Tests\Fixtures\ReturnTypeParent::false()" might add "false" as a native return type declaration in the future. Do the same in child class "Test\Symfony\Component\ErrorHandler\Tests\ReturnType" now to avoid errors or add an explicit @return annotation to suppress this message.',
+            'Method "Symfony\Component\ErrorHandler\Tests\Fixtures\ReturnTypeParent::true()" might add "true" as a native return type declaration in the future. Do the same in child class "Test\Symfony\Component\ErrorHandler\Tests\ReturnType" now to avoid errors or add an explicit @return annotation to suppress this message.',
+            'Method "Symfony\Component\ErrorHandler\Tests\Fixtures\ReturnTypeParent::never()" might add "never" as a native return type declaration in the future. Do the same in child class "Test\Symfony\Component\ErrorHandler\Tests\ReturnType" now to avoid errors or add an explicit @return annotation to suppress this message.',
+            'Method "Symfony\Component\ErrorHandler\Tests\Fixtures\ReturnTypeParent::null()" might add "null" as a native return type declaration in the future. Do the same in child class "Test\Symfony\Component\ErrorHandler\Tests\ReturnType" now to avoid errors or add an explicit @return annotation to suppress this message.',
         ], $deprecations);
     }
 }

Tests/Fixtures/ReturnType.php

@@ -46,5 +46,9 @@ public function this() { }
     public function mixed() { }
     public function nullableMixed() { }
     public function static() { }
+    public function false() { }
+    public function true() { }
+    public function never() { }
+    public function null() { }
     public function outsideMethod() { }
 }

Tests/Fixtures/ReturnTypeParent.php

@@ -220,6 +220,34 @@ public function static()
     {
     }
 
+    /**
+     * @return false
+     */
+    public function false()
+    {
+    }
+
+    /**
+     * @return true
+     */
+    public function true()
+    {
+    }
+
+    /**
+     * @return never
+     */
+    public function never()
+    {
+    }
+
+    /**
+     * @return null
+     */
+    public function null()
+    {
+    }
+
     /**
      * @return int
      */