title: Documenting class extension in objective c using doxygen
body: <p>I have an objective-C class with a class extension in the implementation file. This class extension contains a property. When I run doxygen, in the output I don't see the property that was declared in the class extension. I only see the properties declared in the main header file.</p>
  
  <p>I am running doxygen version 1.8.2, which is supposed to support class extensions in objective C. Do you know what I could be doing wrong in terms of configuration?</p>
  
  <p>Thanks, </p>