title: UIViewController not present in allocations in Instruments heap shot analysis
body: <p>I'm using heap stack analysis techniques, as described widely on <a href="https://stackoverflow.com/questions/18021734/using-heap-shot-analysis-shows-memory-addresses-but-not-lines-of-code-how-do-i">SO here</a> </p>
  
  <p>Everything makes sense, except for I'm trying to track down some UIViewController (subclasses) and they never show up in the allocations list (via parsing it or via search). Since most things in the app's lifecycle are going through VCs, and I can track down other objects allocated in them, I assume there's something I'm missing (...perhaps those are grouped under the much more broad malloc calls?) </p>
  
  <p>I'm trying to track down an over-retained VC, so if anyone can provide useful insight, it'd be appreciated. Thanks!</p>