title: Existing target has no 'swift compiler code generation' section
body: <p>I have an existing Objective-C iOS project and I want to add swift files to it.
  The project has 2 targets.</p>
  
  <p>I created the bridging header MyProject-Bridging-Header.h file and the automatically created bridging header MyProject-Swift.h is generated by Xcode as expected. But only for target "A".</p>
  
  <p>Target "B" doesn't see the MyProject-Swift.h file. The reason is, that the target doesn't have the 'swift compiler code generation' that is responsible for the automatic generation of this file.</p>
  
  <p>I tried to set the file on in the project level - I expected I would be inherited to the targets. But this doesn't work.</p>
  
  <p>How do I get he 'swift compiler code generation' into the existing targets build settings manually?</p>