title: loadChildren is deprecated in angular8
body: <p>I just noticed that Angular 8 (which will be released soon), has deprecated "string-typed router <code>loadChildren</code>". (<a href="https://github.com/angular/angular/issues/30057" rel="nofollow noreferrer">ticket</a>)</p>
  
  <p>Do I understand correctly that they are refering to ...</p>
  
  <pre><code>const routes = [
    {
      path: 'production',
      loadChildren: './production/production.module#ProductionModule' // &lt;&lt;--this
    }],
  </code></pre>
  
  <p>To migrate to Angular 8, what is the solution ?</p>
  
  <p>In the ticket they are refering to "dynamic imports". Am I correct that this refers to the following proposal:</p>
  
  <pre><code>let module = await import('/modules/my-module.js');
  </code></pre>
  
  <p>Could somebody give a preview of what the routing file should actually look like if we wanted to use lazy loading in the future ?</p>