11 static void Test (object s, EventArgs a)
15 public static int Main ()
18 string b = null ?? "a";
22 int? i = null ?? null;
30 string p = default (string) ?? "a";
34 string p2 = "x" ?? "a";
39 string result = arg as string ?? "";
42 int? r = nint ?? null;
44 EventHandler h = new EventHandler (Test) ?? Test;