* Add eslint as dev dep, reorder scripts.
* Add tests & docs to eslintignore.
* Add eslintcache to gitignore.
* Update yarn lock file 😽.
* Add linting step in the test pipeline.
* Add a set of really basic rules for linting.
* Fix linting 🚀.
* No need for .jsx files to be linted...
* Reorder rules alphabetically.
* Refine rules: drop styling ones, only keep what provides dead code elimination.
* Add no-console rule to be consistent along with the no-debugger one.
* Remove empty line.
* Add eslint-disable-next-line no-console where console log/warn/error are allowed.
* Drop no-console rule.
* Remove eslint-disable-next-line no-console comments.
* Remove linting step in Travis CI.
* Fix linting after merging current master.
* Run `npm test -- -u` after noticing one test was out of sync.
* Drop eslint references from previous implementation.
* Revert yarn lock file.
* Revert scripts ordering.
* Fix incorrect yarn lock file.
In #1251, we now have a proper whitelist of all the types that should have parenthesis. Turns out, it included NullableTypeAnnotation which is `?a`. For `?a => void` this wasn't needed but for `(?(a => b)) => c` it was! It's better to always put it anyway if it's not just a simple literal.
I've added tests for all the combinations I could think of, so we'll catch regressions if they happen.
Fixes#1353
* Extract custom tests from tests/flow/
Approach:
1. Remove all .js files in tests/flow except .snap.js files.
2. Copy over all .js files from tests/ in the flow repo.
3. Go through the diff looking for deletions.
- It was easy to see which deletions were due to changes in the tests
due to updates in the flow repo.
- For the rest of the deletions, I used `git blame` to verify that
they had been added by us since the flow tests were copied over.
This makes tests/flow/ simply a copy of the tests from the flow repo,
making it easier to sync with the upstream flow tests in the future.
* Add a script for syncing the flow tests
* Sync the flow tests
Nicolò Ribaudo