Basically unaliasing distinguishes the cases: * I have `iso^` because consumed the last reference to an `iso`, so this value can be sent anywhere or renamed * I have `iso` because I've just evaluated a living reference…
Basically unaliasing distinguishes the cases: * I have `iso^` because consumed the last reference to an `iso`, so this value can be sent anywhere or renamed * I have `iso` because I've just evaluated a living reference…