// CS8093: An argument to nameof operator cannot be extension method group // Line: 35 using System; public class A { } namespace N1 { public static class X { public static string Extension (this A a, long x) { return null; } public static string Extension (this A a, int x) { return null; } } } namespace N2 { using N1; public class Program { public static int Main () { A a = null; const string n = nameof (a.Extension); if (n != "Extension") return 1; return 0; } } }