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
;