anchor.diff:  
           queue.IsEmpty
   
  -    /// The number of elements in the queue.
  +    /// <summary>The number of elements in the queue.</summary>
  +    /// <param name="queue"></param>
  +    /// <returns></returns>
       [<CompiledName("Length")>]
       let inline length (queue : Queue<'T>) =
           // Preconditions
  
positive.code: 
  *)
  
  //
  namespace ExtCore.Collections
  
  //open System.Collections
  
negative.code:         
          queue.ToList ()
  
      /// <summary>Create an array containing the elements of the Queue in order.</summary>
      /// <param name="queue"></param>
      /// <returns></returns>
      [<CompiledName("ToArray")>]
      let inline toArray (queue : Queue<'T>) : 'T[] =
          // Preconditions
  