title: code coverage with xcode 4.5 - no gcda generated
body: <p>I have a simple project that run on Xcode 4.5 with Apple LLVM 4.1 compiler.</p>
  
  <p>I have set below flags in build settings:</p>
  
  <ol>
  <li>Generate Profiling code: Yes </li>
  <li>Instrument program flow: Yes Generate</li>
  <li>Test Coverage files: Yes</li>
  </ol>
  
  <p>I am running the app on iPad 6.0 Simulator and once the app launches I am clicking few buttons and playing around with it.</p>
  
  <p>I am not running unit tests on this, but am manually clicking buttons. Under derived data..., all I am seeing is .gcov files. But No .gcda files are being generated.</p>
  
  <p>Really appreciate any pointers you might have!</p>
  
  <p>Thanks!</p>