What to do about disabled variants?

[PokeJofeJr4th]

With the original implementation, disabled variants are completely ignored during code generation. This meant that in a match statement, the disabled variant was not covered, preventing the code from being compiled. I see three options:

1. Ignore the disabled flag
2. Panic when a disabled variant is passed in
3. Return an Option or Result when a disabled variant could be passed in

Number 2 is currently implemented