title: Visual Studio 2015 codelens issues when using Typescript
body: <p>I'm using Visual Studio 2015 Enterprise RTM.
  When creating an ASP.net 4.6 web application using the Web Api template, I noticed as soon as I add a TypeScript file, the codelens indicators stop working.
  I tested this on a new installation, with no extra extensions installed, as well and tried other asp.net 4.6 templates.
  When running in safe mode the problem doesn't occur.</p>
  
  <p>Steps to reproduce:</p>
  
  <ul>
  <li>Set the framework to 4.6</li>
  <li>Create a web application by using the web api template. </li>
  <li>Change authentication to no authentication</li>
  <li>Open the webapiconfig.cs in App_Start</li>
  <li>The codelens indicator on the register method should say: 1 reference</li>
  <li>Add a typescript file called app.ts (doesn't really matter) in the scripts folder, tit may remain empty</li>
  <li>The codelens indicator in the webapiconfig file should still say 1 reference</li>
  <li>Close Visual Studio</li>
  <li>Reopen Visual Studio and open the solution</li>
  <li>Check the webapiconfig file, the codelens doesn't show references anymore or on any other file</li>
  </ul>
  
  <p>Any idea on how to debug codelens or does anyone have this problem as well?</p>