title: Is there a way to turn off the "this is not allowed before super" rule in babelify?
body: <p>I'm running babelify 7.2.0 with Gulp and I'm getting an error on the following code:</p>
  
  <pre><code>class One {}
  
  class Two extends One {
    constructor() {
      this.name = 'John';
    }
  }
  </code></pre>
  
  <p>Here is the crux of the error:</p>
  
  <pre><code>SyntaxError: [the file path in question]: 'this' is not allowed before super()
    20 | class Two extends One {
    21 |   constructor() {
  &gt; 22 |     this.name = 'John';
       |     ^
    23 |   }
    24 | }
    25 | 
  </code></pre>
  
  <p>It seems to me that this should not be firing because I am not making any <code>super</code> calls within the constructor at all so there's no risk of conflict. I've submitted an issue already on Github but I'm wondering if there's a way I can turn it off in the mean time.</p>