title: missing '@end' error on build react-native App
body: <p>I am trying to upgrade my react-native app to V0.59.8, I followed all steps according to rn-diff repo  <a href="https://github.com/react-native-community/rn-diff-purge/compare/version/0.57.4...version/0.59.8" rel="nofollow noreferrer">https://github.com/react-native-community/rn-diff-purge/compare/version/0.57.4...version/0.59.8</a> </p>
  
  <p>My App work just fine on Android but I have some issue building my App on ios
  I am getting a syntax error from <code>main.m</code> file  which I don't even touch it</p>
  
  <p>main.m file:  </p>
  
  <pre><code>/**
   * Copyright (c) Facebook, Inc. and its affiliates.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */
  
  #import &lt;UIKit/UIKit.h&gt;
  #import "AppDelegate.h"
  
  int main(int argc, char * argv[]) {
    @autoreleasepool {
      return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
    }
  }
  </code></pre>
  
  <p>Error :<br>
  <a href="https://i.stack.imgur.com/rDKGP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rDKGP.png" alt="enter image description here"></a></p>