Merge branch '6.0' into 6.1

* 6.0:
  [Messenger] Fix dealing with unexpected payload in Redis transport
  [Filesystem] Update some PHPDoc of the Path class
  [VarDumper] Fix dumping mysqli_driver instances
  Fix missing ReturnTypeWillChange attributes
  [Cache] Add missing log when saving namespace
  [HttpKernel] Reset services between requests performed by KernelBrowser
  [HttpKernel] Remove unused argument in ArgumentMetadataFactory
  [Stopwatch] Fix test expectation
  [SecurityBundle] fix autoconfiguring Monolog's ProcessorInterface
  KernelTestCase resets internal state on tearDown
  [Security/Http] Fix getting password-upgrader when user-loader is a closure
  [HttpKernel] Fix extracting controller name from closures
  [Intl] fix wrong offset timezone PHP 8.1
  Fix type binding
  Remove duplicated test
  [Dotenv] Fix reading config for symfony/runtime when running dump command
  [Serializer] Remove unnecessary break
  [Runtime] Fix dotenv_overload with commands
  Make document type nodes ignorable
  Initialize Symfony\Component\Security\Core\Exception\AccountStatusException:: property

Author: nicolas-grekas

KernelBrowser.php

@@ -22,6 +22,7 @@
 use Symfony\Component\HttpKernel\KernelInterface;
 use Symfony\Component\HttpKernel\Profiler\Profile as HttpProfile;
 use Symfony\Component\Security\Core\User\UserInterface;
+use Symfony\Contracts\Service\ResetInterface;
 
 /**
  * Simulates a browser and makes requests to a Kernel object.
@@ -156,7 +157,12 @@ protected function doRequest(object $request): Response
         // avoid shutting down the Kernel if no request has been performed yet
         // WebTestCase::createClient() boots the Kernel but do not handle a request
         if ($this->hasPerformedRequest && $this->reboot) {
+            $container = $this->kernel->getContainer();
             $this->kernel->shutdown();
+
+            if ($container instanceof ResetInterface) {
+                $container->reset();
+            }
         } else {
             $this->hasPerformedRequest = true;
         }

Test/KernelTestCase.php

@@ -40,6 +40,7 @@ abstract class KernelTestCase extends TestCase
     protected function tearDown(): void
     {
         static::ensureKernelShutdown();
+        static::$class = null;
         static::$kernel = null;
         static::$booted = false;
     }

Tests/Functional/TestServiceContainerTest.php

@@ -39,4 +39,22 @@ public function testThatPrivateServicesAreAvailableIfTestConfigIsEnabled()
         $this->assertTrue(static::getContainer()->has('private_service'));
         $this->assertFalse(static::getContainer()->has(UnusedPrivateService::class));
     }
+
+    /**
+     * @doesNotPerformAssertions
+     */
+    public function testBootKernel()
+    {
+        static::bootKernel(['test_case' => 'TestServiceContainer']);
+    }
+
+    /**
+     * @depends testBootKernel
+     */
+    public function testKernelIsNotInitialized()
+    {
+        self::assertNull(self::$class);
+        self::assertNull(self::$kernel);
+        self::assertFalse(self::$booted);
+    }
 }

Tests/KernelBrowserTest.php

@@ -54,7 +54,7 @@ public function testEnableRebootKernel()
     private function getKernelMock()
     {
         $mock = $this->getMockBuilder($this->getKernelClass())
-            ->setMethods(['shutdown', 'boot', 'handle'])
+            ->setMethods(['shutdown', 'boot', 'handle', 'getContainer'])
             ->disableOriginalConstructor()
             ->getMock();