title: IEnumerable to IReadOnlyCollection
body: <p>I have <code>IEnumerable&lt;Object&gt;</code> and need to pass to a method as a parameter but this method takes <code>IReadOnlyCollection&lt;Object&gt;</code></p>
  
  <p>Is it possible to convert <code>IEnumerable&lt;Object&gt;</code> to <code>IReadOnlyCollection&lt;Object&gt;</code> ?</p>