C# 6.0 in VS 2015 CTP5

csharp6vs2015ctp5

using static System.Console; // using → using static

class Program
{
    static void Main()
    {
        var x = int.Parse(ReadLine());
        WriteLine($"{nameof(x)} = {x}"); // "\{x}" → $"{x}"
    }

    static int Test(int x) => x;
}