Merge branch '3.4' into 4.4

* 3.4:
  Skip Doctrine DBAL on php 8 until we have a compatible version.
  [DomCrawler] Catch expected ValueError.
  [Validator] Catch expected ValueError.
  [VarDumper] ReflectionFunction::isDisabled() is deprecated.
  [PropertyAccess] Parse php 8 TypeErrors correctly.
  [Intl] Fix call to ReflectionProperty::getValue() for static properties.
  [HttpKernel] Prevent calling method_exists() with non-string values.
  [Debug] php 8 does not pass $context to error handlers.
  [Config] Removed implicit cast of ReflectionProperty to string.
  [Debug] Undefined variables raise a warning in php 8.
  [Debug] Skip test that would trigger a fatal error on php 8.
  Address deprecation of ReflectionType::getClass().
  Properties $originalName and $mimeType are never null in UploadedFile

Resource/ReflectionClassResource.php

@@ -135,7 +135,11 @@ private function generateSignature(\ReflectionClass $class): iterable
             $defaults = $class->getDefaultProperties();
 
             foreach ($class->getProperties(\ReflectionProperty::IS_PUBLIC | \ReflectionProperty::IS_PROTECTED) as $p) {
-                yield $p->getDocComment().$p;
+                yield $p->getDocComment();
+                yield $p->isDefault() ? '<default>' : '';
+                yield $p->isPublic() ? 'public' : 'protected';
+                yield $p->isStatic() ? 'static' : '';
+                yield '$'.$p->name;
                 yield print_r(isset($defaults[$p->name]) && !\is_object($defaults[$p->name]) ? $defaults[$p->name] : null, true);
             }
         }