@inthehands actually that one works two different ways 馃槀
1) the smol Strings optimization means we *never* have to allocate for <= 15 bytes of UTF8
2) appending to an empty String will indeed just return the argument (special case in the code), which is a constant in the binary
鈥r possibly the argument is also smol, I forget how we emit that. It works either way here.
