title: Code Definition Window not working in VS2015
body: <p>Just upgraded to Visual Studio 2015 and the Code Definition Window is not working.It just says "No definition selected" no matter what I select. Project is Windows Forms written in C#. </p>
  
  <ul>
  <li>Go to Definition and Peek Definition are working fine</li>
  <li>Went back to VS2013 to try it out and it's still working there</li>
  <li>Tried to make a brand new project in VS2015 to see if it was project related, but it was not</li>
  <li>Checked with a couple of colleagues and it wasn't working for them either</li>
  </ul>
  
  <p>I have a feeling this is either a bug in VS2015 or some sort of configuration change. </p>
  
  <p>Anyone found a way to configure it, or any sort of work around to get it up and running again?</p>