A few uses of `array.sort()` have been left alone:
- sorting in `data/` because they aren't supposed to import anything
- `set-importer` because I still have no clue what that's for and what
dependencies it is/isn't allowed to have
- `sort()` with no arguments used as a lexical sort (at which point
`sortBy` offers no benefits)
All other cases have been replaced with `Utils.sortBy`, which should
be a massive increase in readability.
Sort orders should be much more readable now, without needing to puzzle
through sign issues. The order is always low-to-high, A-to-Z,
true-to-false.
We were previously using `type Foo = import('bar').Foo` which works
actually equally well, because sucrase didn't support `import type`,
but now it does!
