Merge branch '4.4' into 5.4

* 4.4:
  [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

Author: nicolas-grekas

ControllerMetadata/ArgumentMetadataFactory.php

@@ -48,7 +48,7 @@ public function createArgumentMetadata($controller): array
                 }
             }
 
-            $arguments[] = new ArgumentMetadata($param->getName(), $this->getType($param, $reflection, $class), $param->isVariadic(), $param->isDefaultValueAvailable(), $param->isDefaultValueAvailable() ? $param->getDefaultValue() : null, $param->allowsNull(), $attributes);
+            $arguments[] = new ArgumentMetadata($param->getName(), $this->getType($param, $class), $param->isVariadic(), $param->isDefaultValueAvailable(), $param->isDefaultValueAvailable() ? $param->getDefaultValue() : null, $param->allowsNull(), $attributes);
         }
 
         return $arguments;
@@ -57,7 +57,7 @@ public function createArgumentMetadata($controller): array
     /**
      * Returns an associated type to the given parameter if available.
      */
-    private function getType(\ReflectionParameter $parameter, \ReflectionFunctionAbstract $function, ?string $class): ?string
+    private function getType(\ReflectionParameter $parameter, ?string $class): ?string
     {
         if (!$type = $parameter->getType()) {
             return null;