title: Unresolved functions or methods using CodeceptJS in PhpStorm
body: <p>I've just followed the <a href="http://codecept.io/quickstart/" rel="nofollow noreferrer">CodeceptJS Quickstart</a> and opened <code>first_test.js</code> in the PhpStorm IDE (equivalent to WebStorm, IntelliJ, etc.).</p>
  
  <p>For all the built-in functions, I'm getting "Unresolved function or method …":</p>
  
  <p><a href="https://i.stack.imgur.com/2gvL2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2gvL2.png" alt="enter image description here"></a></p>
  
  <p>I also don't get any autocompletion on <code>I</code>.</p>
  
  <p>I've tried the following.</p>
  
  <ol>
  <li>Looked for a CodeceptJS plugin. Didn't find any.</li>
  <li>Enabled <code>codeceptjs/node_modules</code> in Settings -> Languages &amp; Frameworks -> JavaScript -> Libraries.</li>
  <li>Set JavaScript language version to ECMAScript 6.</li>
  <li>Enabled the Node.js Core library.</li>
  <li>Restarted PhpStorm.</li>
  </ol>