Merge branch '6.4' into 7.0

* 6.4:
  fix merge
  fix syntax for PHP 7.2
  [Security] Fix Danish translations
  [Messenger] Improve deadlock handling on `ack()` and `reject()`
  [DomCrawler] Encode html entities only if nessecary
  [Serializer] reset backed_enum priority, and re-prioritise translatable
  [Validator] Accept `Stringable` in `ExecutionContext::build/addViolation()`
  [Serializer] Ignore when using #[Ignore] on a non-accessor
  [Filesystem] Strengthen the check of file permissions in `dumpFile`
  [Serializer] Fix XML scalar to object denormalization
  [HttpClient][EventSourceHttpClient] Fix consuming SSEs with \r\n separator

Author: xabbuh

Resources/config/serializer.php

@@ -115,7 +115,7 @@
 
         ->set('serializer.normalizer.translatable', TranslatableNormalizer::class)
             ->args(['$translator' => service('translator')])
-            ->tag('serializer.normalizer', ['priority' => -890])
+            ->tag('serializer.normalizer', ['priority' => -920])
 
         ->set('serializer.normalizer.form_error', FormErrorNormalizer::class)
             ->tag('serializer.normalizer', ['priority' => -915])
@@ -212,6 +212,6 @@
             ])
 
         ->set('serializer.normalizer.backed_enum', BackedEnumNormalizer::class)
-            ->tag('serializer.normalizer', ['priority' => -880])
+            ->tag('serializer.normalizer', ['priority' => -915])
     ;
 };

Tests/DependencyInjection/FrameworkExtensionTestCase.php

@@ -66,6 +66,7 @@
 use Symfony\Component\Serializer\Mapping\Loader\AttributeLoader;
 use Symfony\Component\Serializer\Mapping\Loader\XmlFileLoader;
 use Symfony\Component\Serializer\Mapping\Loader\YamlFileLoader;
+use Symfony\Component\Serializer\Normalizer\BackedEnumNormalizer;
 use Symfony\Component\Serializer\Normalizer\ConstraintViolationListNormalizer;
 use Symfony\Component\Serializer\Normalizer\DataUriNormalizer;
 use Symfony\Component\Serializer\Normalizer\DateIntervalNormalizer;
@@ -1539,10 +1540,24 @@ public function testTranslatableNormalizerRegistered()
         $tag = $definition->getTag('serializer.normalizer');
 
         $this->assertSame(TranslatableNormalizer::class, $definition->getClass());
-        $this->assertSame(-890, $tag[0]['priority']);
+        $this->assertSame(-920, $tag[0]['priority']);
         $this->assertEquals(new Reference('translator'), $definition->getArgument('$translator'));
     }
 
+    /**
+     * @see https://github.com/symfony/symfony/issues/54478
+     */
+    public function testBackedEnumNormalizerRegistered()
+    {
+        $container = $this->createContainerFromFile('full');
+
+        $definition = $container->getDefinition('serializer.normalizer.backed_enum');
+        $tag = $definition->getTag('serializer.normalizer');
+
+        $this->assertSame(BackedEnumNormalizer::class, $definition->getClass());
+        $this->assertSame(-915, $tag[0]['priority']);
+    }
+
     public function testSerializerCacheActivated()
     {
         $container = $this->createContainerFromFile('serializer_enabled');