anchor.diff:      member val LoginSucceeded = fun () -> () with get,set
          
       member this.ShouldShowInstructions
  -        with get () = xamarinAccountEmail = ""
  +        with get () = XamarinAccountEmail = ""
   
       override this.ViewDidLayoutSubviews () =
           let mutable bounds = this.View.Bounds
  
positive.code: 
      // TODO: Enter your Xamarin account email address here
      // If you do not have a Xamarin Account please sign up here: https://store.xamarin.com/account/register
      let xamarinAccountEmail = ""
  
      let mutable ContentView:UIView = null
      let mutable LoginView = null
  
negative.code:             ContentView <- new PrefillXamarinAccountInstructionsView ()
              scrollView.Add(ContentView)
          else
              LoginView <- new LoginView (XamarinAccountEmail)
              LoginView.UserDidLogin <- fun _ -> this.Login XamarinAccountEmail LoginView.PasswordField.Text |> Async.StartImmediate
              ContentView <- LoginView
              scrollView.Add ContentView
  
  