public interface IFoo[X]
{ }

public class Test
{
  public Hello[T] ( foo : IFoo[T]) :  void
  {
    InsertAll (foo);
  }

  public InsertAll[U] ( _foo : IFoo[U]) :  void
  { }
}

class X
{
  static Main () :  void
  { }
}
/*
BEGIN-OUTPUT
END-OUTPUT
*/