title: Warning 'myframe-Bridging-Header.h' in Xcode 8.3
body: <p>I updated Xcode to Version 8.3 (8E162) and in my unit test file I have this warning:</p>
  
  <blockquote>
    <p>Implicit import of bridging header 'myframe-Bridging-Header.h' via
    module 'myframe' is deprecated and will be removed in a later version
    of Swift</p>
  </blockquote>
  
  <p>on this line:</p>
  
  <pre><code>@testable import myframe
  </code></pre>
  
  <p>How to fix this warning?</p>