fix: Honor istanbul ignore next hints placed before export statement.

[coreyfarrell]

Fixes #297

[coreyfarrell]

prettier 😠

[JaKXz]

@coreyfarrell protip: I use npx pretty-quick --staged when committing.

[coreyfarrell]

@JaKXz normally I wouldn't do a change without running npm test which would run eslint. In this case it took me a few tries to get the test working so I ran tests against istanbul-lib-instrument only - which bypassed the posttest in the root package.json.

Really my frustration with prettier is mostly just personal preference, complying with prettier style is difficult for me.

[JaKXz]

I've had this discussion at [way too much] length with colleagues, so I mean this with the best possible intent: I try not to worry too much about "complying" with the style. I just make my changes, stage them, and let pretty-quick take care of compliance.

FWIW it was extremely liberating once I thought about it this way, I too had similar apprehensions at first.

[coreyfarrell]

As long as I remember to run the full npm test instead of short-cutting it eslint tells me what I did wrong then I just run npx eslint . --fix (the test failure tells me to do this so this is what I remember).

I don't really have apprehensions about prettier, it's just annoying to me. Personally I don't find that prettier produces more readable code, I especially dislike the rules about line length.