update test to use types from diff libs

Rx.NET/Integration/BindingRedirects/CommonCodeInPcl/Class1.cs

@@ -1,16 +1,22 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Reactive.Disposables;
 using System.Reactive.Linq;
+using System.Reactive.Subjects;
 using System.Text;
 
 namespace CommonCodeInPcl
 {
     public class Class1
     {
+        ISubject<Class1> subject;
+        IDisposable disposable = Disposable.Empty;
         public static IObservable<int> GetFoo()
         {
+
             return Observable.Interval(TimeSpan.FromMinutes(1)).Select(_ => 3);
+
         }
     }
 }