fix(symfony): isolate api_platform.property_info tags

Rename extractor tags from `property_info.*` to
`api_platform.property_info.*` so registrations do not leak into
Symfony's framework `property_info` service. The shared tag caused
`PhpStanExtractor` to be injected into the validator's property_info
chain, crashing on `@template T of object` Doctrine annotations:

  Cannot create union with both "object" and class type.

Restores the design intent of #7969 (two independent services).

Fixes #8201

Author: soyuka

src/Symfony/Bundle/Resources/config/api.php

@@ -77,29 +77,29 @@
     $services->alias('api_platform.property_accessor', 'property_accessor');
 
     $services->set('api_platform.property_info.reflection_extractor', ReflectionExtractor::class)
-        ->tag('property_info.list_extractor', ['priority' => -1000])
-        ->tag('property_info.type_extractor', ['priority' => -1002])
-        ->tag('property_info.access_extractor', ['priority' => -1000])
-        ->tag('property_info.initializable_extractor', ['priority' => -1000]);
+        ->tag('api_platform.property_info.list_extractor', ['priority' => -1000])
+        ->tag('api_platform.property_info.type_extractor', ['priority' => -1002])
+        ->tag('api_platform.property_info.access_extractor', ['priority' => -1000])
+        ->tag('api_platform.property_info.initializable_extractor', ['priority' => -1000]);
 
     if (class_exists(DocBlockFactory::class)) {
         $services->set('api_platform.property_info.php_doc_extractor', PhpDocExtractor::class)
-            ->tag('property_info.description_extractor', ['priority' => -1000])
-            ->tag('property_info.type_extractor', ['priority' => -1001]);
+            ->tag('api_platform.property_info.description_extractor', ['priority' => -1000])
+            ->tag('api_platform.property_info.type_extractor', ['priority' => -1001]);
     }
 
     if (class_exists(PhpDocParser::class) && class_exists(ContextFactory::class)) {
         $services->set('api_platform.property_info.phpstan_extractor', PhpStanExtractor::class)
-            ->tag('property_info.type_extractor', ['priority' => -1000]);
+            ->tag('api_platform.property_info.type_extractor', ['priority' => -1000]);
     }
 
     $services->set('api_platform.property_info', PropertyInfoExtractor::class)
         ->args([
-            tagged_iterator('property_info.list_extractor'),
-            tagged_iterator('property_info.type_extractor'),
-            tagged_iterator('property_info.description_extractor'),
-            tagged_iterator('property_info.access_extractor'),
-            tagged_iterator('property_info.initializable_extractor'),
+            tagged_iterator('api_platform.property_info.list_extractor'),
+            tagged_iterator('api_platform.property_info.type_extractor'),
+            tagged_iterator('api_platform.property_info.description_extractor'),
+            tagged_iterator('api_platform.property_info.access_extractor'),
+            tagged_iterator('api_platform.property_info.initializable_extractor'),
         ]);
 
     $services->set('api_platform.property_info.cache', PropertyInfoCacheExtractor::class)

src/Symfony/Tests/Bundle/DependencyInjection/ApiPlatformExtensionTest.php

@@ -412,4 +412,36 @@ public function testPaginationMaximumItemsPerPageWhenDefaultsKeyIsMissing(): voi
         $this->assertTrue($this->container->hasParameter('api_platform.collection.pagination.maximum_items_per_page'));
         $this->assertSame(30, $this->container->getParameter('api_platform.collection.pagination.maximum_items_per_page'));
     }
+
+    /**
+     * @see https://github.com/api-platform/core/issues/8201
+     */
+    public function testPropertyInfoExtractorsDoNotLeakIntoFrameworkPropertyInfo(): void
+    {
+        $config = self::DEFAULT_CONFIG;
+        (new ApiPlatformExtension())->load($config, $this->container);
+
+        $services = ['api_platform.property_info.reflection_extractor'];
+        if (class_exists(\phpDocumentor\Reflection\DocBlockFactory::class)) {
+            $services[] = 'api_platform.property_info.php_doc_extractor';
+        }
+        if (class_exists(\PHPStan\PhpDocParser\Parser\PhpDocParser::class) && class_exists(\phpDocumentor\Reflection\Types\ContextFactory::class)) {
+            $services[] = 'api_platform.property_info.phpstan_extractor';
+        }
+
+        foreach ($services as $service) {
+            $this->assertContainerHasService($service);
+            $tags = $this->container->getDefinition($service)->getTags();
+            foreach ($tags as $name => $_) {
+                $this->assertStringStartsNotWith('property_info.', $name, \sprintf('Service "%s" must not use the global "property_info.*" tag namespace (leaks into Symfony\'s property_info and breaks the validator chain — issue #8201). Found tag "%s".', $service, $name));
+            }
+        }
+
+        $apiPlatformPropertyInfo = $this->container->getDefinition('api_platform.property_info');
+        foreach ($apiPlatformPropertyInfo->getArguments() as $arg) {
+            if ($arg instanceof \Symfony\Component\DependencyInjection\Argument\TaggedIteratorArgument) {
+                $this->assertStringStartsWith('api_platform.property_info.', $arg->getTag(), \sprintf('api_platform.property_info must consume only "api_platform.property_info.*" private tags; found "%s".', $arg->getTag()));
+            }
+        }
+    }
 }