Merge branch '6.4' into 7.0

* 6.4: (31 commits)
  [Messenger] Add call to `gc_collect_cycles()` after each message is handled
  fix tests
  fix tests on AppVeyor
  Hungarian typo fix in validators translation
  [VarDump] Fix order of dumped properties - parent goes first
  DX: drop unused import
  [Validator] updated Latvian translation
  re-introduce conflict rule with WebProfilerBundle < 6.4
  [Validator] Added missing Swedish translations
  [Mailer] [Notifier] #52264 Update Sendinblue / Brevo API host
  [Validator] Added missing Estonian translations #51939
  fix File constraint tests on 32bit PHP
  [Form] Skip merging params & files if there are no files in the first place
  [Translation] Ignore bridges in `.gitattributes` file
  [AssetMapper] Adding import-parsing case where import contains a path
  Add missing Hungarian validator translations
  Added missing Bosnian translations #51929
  add return type hints to EntityFactory
  Update UndefinedCallableHandler with "importmap", "form" and "worflow" filters/functions
  [FrameworkBundle] Fix CommandDataCollector is always registered
  ...

Caster/Caster.php

@@ -177,6 +177,10 @@ private static function getClassProperties(\ReflectionClass $class): array
         $classProperties = [];
         $className = $class->name;
 
+        if ($parent = $class->getParentClass()) {
+            $classProperties += self::$classProperties[$parent->name] ??= self::getClassProperties($parent);
+        }
+
         foreach ($class->getProperties() as $p) {
             if ($p->isStatic()) {
                 continue;
@@ -189,10 +193,6 @@ private static function getClassProperties(\ReflectionClass $class): array
             }] = new UninitializedStub($p);
         }
 
-        if ($parent = $class->getParentClass()) {
-            $classProperties += self::$classProperties[$parent->name] ??= self::getClassProperties($parent);
-        }
-
         return $classProperties;
     }
 }

Tests/Caster/CasterTest.php

@@ -185,4 +185,32 @@ public function __debugInfo(): array
             }
         });
     }
+
+    public function testClassHierarchy()
+    {
+        $this->assertDumpMatchesFormat(<<<'DUMP'
+            Symfony\Component\VarDumper\Tests\Caster\B {
+              +a: "a"
+              #b: "b"
+              -c: "c"
+              +d: "d"
+              #e: "e"
+              -f: "f"
+            }
+            DUMP, new B());
+    }
+}
+
+class A
+{
+    public $a = 'a';
+    protected $b = 'b';
+    private $c = 'c';
+}
+
+class B extends A
+{
+    public $d = 'd';
+    protected $e = 'e';
+    private $f = 'f';
 }