title: Xcode 4.6.1 debugger local variables not available
body: <p>I recently upgraded Xcode 4.6 to 4.6.1, and I notice the following abnormal behaviour:</p>
  
  <ol>
  <li><p>Sometimes, Local Variables are not available upon a breakpoint</p></li>
  <li><p>Upon Step Into and Step Over when being suspended over a breakpoint, the editor highlights the incorrect line the code.</p></li>
  </ol>
  
  <p>The LLVM 4.2 Compiler - COde Generation / Optimization level is set to None for Debug. I have tried cleaning the project, the simulator, etc. No luck.</p>
  
  <p>Any clues?</p>