title: XCode 9 missing CoreSimulator.framework
body: <p>I have downloaded the new 9th version of XCode, and I have found out that there is no CoreSimulator.framework in the <code>~/Xcode.app/Contents/Developer/Library/PrivateFrameworks</code>.</p>
  
  <p>Using Xamarin Studio, I can run the app on the simulators, however, when trying to run tests, it is not successful since this framework is not present in this Xcode version.</p>
  
  <p>I found out that in Xcode 8 the framework was present. Is there any possibility to import this framework to the new Xcode?</p>