support array syntax

Author: taylorotwell

src/Illuminate/Routing/Route.php

@@ -857,6 +857,10 @@ public function named(...$patterns)
      */
     public function uses($action)
     {
+        if (is_array($action)) {
+            $action = $action[0].'@'.$action[1];
+        }
+
         $action = is_string($action) ? $this->addGroupNamespaceToStringUses($action) : $action;
 
         return $this->setAction(array_merge($this->action, $this->parseAction([