9 static void M1<T> (T t) where T : struct
13 static void M2<T, U> (T t, U u) where U : IEquatable<T>
17 static void M3<T, U> (T t, A<U> u) where U : IEquatable<T>
21 static void M4<T, U> (T t, IEquatable<U> u) where T : IEquatable<U>
25 public static void Main ()
33 M3 (d, new A<int> ());
36 // TODO: type inference