Failed to define expression bodied operators

Elements C#
1 
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();
}

Elements 8.3.92.1901

2

Thanks, logged as bugs://74170

3

bugs://74170 got closed with status fixed.