Failed to define expression bodied operators

public class MyClass {
    // Lots of compile errors if => syntax is used here, which is supported in MS C# 6.0
    public static implicit operator MyClass(string r) => new MyClass();
    public static MyClass operator+ (MyClass a, MyClass b) => new MyClass();


Thanks, logged as bugs://74170

bugs://74170 got closed with status fixed.