title: Identifier 'normal_push' is not in camel case
body: <p>I'm trying to build a project with webpack, but I get an error:</p>
  
  <pre><code>Identifier 'normal_push' is not in camel case
  </code></pre>
  
  <p>Javascript and webpack config file here: <a href="https://jsfiddle.net/6ea01yst/1/" rel="nofollow noreferrer">https://jsfiddle.net/6ea01yst/1/</a></p>
  
  <p>How fix it problem?</p>