Special-case subtracting from a range if that range is not an IntRange
Special-case subtracting from a range if that range is not an IntRange

aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust