namespace Stuff {
  public class Program {
    private static void Main() {
      foreach(A a in new A[10]) {
        I i=a.MakeB();
        i.Blah(); //Inline variable turns this into invalid code
      }
    }

    private interface I {
      void Blah();
    }

    private class A {
      public B MakeB() {
        return new B();
      }
    }

    private class B : I {
      void I.Blah() {}
    }
  }
}