title: How can I use closure type annotation with Aptana?
body: <p>If I enter the follow JavaScript code in Aptana Studio 3 then I expect some errors but it show nothing.</p>
  
  <pre><code>/**
   * @type {string}
   */
  var abc = 23;
  abc.doesNotExists();
  </code></pre>
  
  <p>How can I enable the support for closure type annotation?</p>