Let setData handles data transformation (#15137)

src/Illuminate/Routing/ResponseFactory.php

@@ -2,12 +2,10 @@
 
 namespace Illuminate\Routing;
 
-use JsonSerializable;
 use Illuminate\Support\Str;
 use Illuminate\Http\Response;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Support\Traits\Macroable;
-use Illuminate\Contracts\Support\Arrayable;
 use Illuminate\Contracts\View\Factory as ViewFactory;
 use Symfony\Component\HttpFoundation\StreamedResponse;
 use Symfony\Component\HttpFoundation\BinaryFileResponse;
@@ -74,26 +72,22 @@ public function view($view, $data = [], $status = 200, array $headers = [])
     /**
      * Return a new JSON response from the application.
      *
-     * @param  string|array  $data
+     * @param  mixed  $data
      * @param  int  $status
      * @param  array  $headers
      * @param  int  $options
      * @return \Illuminate\Http\JsonResponse
      */
     public function json($data = [], $status = 200, array $headers = [], $options = 0)
     {
-        if ($data instanceof Arrayable && ! $data instanceof JsonSerializable) {
-            $data = $data->toArray();
-        }
-
         return new JsonResponse($data, $status, $headers, $options);
     }
 
     /**
      * Return a new JSONP response from the application.
      *
      * @param  string  $callback
-     * @param  string|array  $data
+     * @param  mixed  $data
      * @param  int  $status
      * @param  array  $headers
      * @param  int  $options