Adds an array of integers using goto (don't do this!)

GotoAdder.cs

internal class GotoAdder : IIntegerAdder
{
    public int Add(int[] values)
    {
        int sum = 0;
        int count = values.Length;
        int index = 0;            
    BEGIN:
        if (index == count) goto RETURN;
        int value = values[index++];
        sum += value;
        goto BEGIN;
    RETURN: 
        return sum;
    }    
}