I may be misunderstanding what you want, but here's a shot...
In JavaScript, the string "\0027" evaluates to the string "7". If you want a string to evaluate to "\0027", you must write "\\0027" in JavaScript.
Thus in LiveScript, if you want a string to evaluate to "\0027", we must compile to "\\0027", which is what "\\0027" in LS compiles too.