// Compiler options: -t:library

namespace FLMID.Bugs.Marshal15
{
  public class A[T]

  {

  }
  public abstract class B
  {
    protected  mutable  _aux : A[bool];
  }
  public class X : B
  {
  }
  public abstract class C
  {
    protected  mutable  _layout : B;
  }
}