title: Class with a nested collection - how do I populate the nested class?
body: <p>I'm a bit confused as to hydrate a class with a nested collection of another class.
  I get the error:</p>
  
  <blockquote>
    <p>AutoFixture was unable to create an instance from System.Collections.Generic.IList`1[typename...]</p>
  </blockquote>
  
  <p>I've tried to use <code>Fixture.Register()</code> to register the type for populating the inner class.
  I could just to do with a sample which shows</p>
  
  <ol>
  <li>The main class</li>
  <li>The nested collection (IList/IEnumerable) of another class.</li>
  </ol>
  
  <p>I've also noticed that <code>Register()</code> is marked as obsolete, yet there is no documentation on the <code>Inject()</code> method on CodePlex so I'm stumped as to how this should work.</p>