title: Getting strange debugger message: Assertion failed: (cls), function getName: what is this?
body: <p>Since I upgraded from Xcode 3.2.3 to 3.2.4 and iOS 4.0.1 to iOS 4.1 SDK, when I set a breakpoint in my code and single-step over instructions, at each step, the debugger will spit one or more of that line:</p>
  
  <p><code>Assertion failed: (cls), function getName, file /SourceCache/objc4_Sim/objc4-427.1.1/runtime/objc-runtime-new.m, line 3939</code></p>
  
  <p>It doesn't happen on a specific line or for a specific instructions. I have a few breakpoints in my code and each time I hit one of those, the debugger starts spewing those messages. It doesn't seem to have any detrimental effect as the program works correctly. It's just very annoying to retrieve the information in the console when there are tens of those lines. I'm sure they're not displayed for nothing but I haven't found what the problem might be and what instruction might cause it. If I don't hit a breakpoint, then I don't see any of those lines. I did clean and rebuild my project multiple times to no avail.</p>
  
  <p>Does anybody have any idea what this is?</p>