I can't come up with a really satisfying solution here, this is just intended to be the least subjective measure I could come up with since I thought comparing lengths in charactes was pretty unambiguous. I'd rather come up with something better later. Note that this code isn't used in the `--pretty normal` mode which just seems to tokenize/slice up the source text again, from what I can tell it only gets called via `--pretty expanded`, which isn't really pretty anymore due to all the macro cruft. ;)