fix: handle temporal deadzone for local variables shadowing parent function

[theKashey]

Consider the following code:

function token(path) {
    let token = tokens[path];
}

right now it will be converted into

function token(path, fallback) {
  const [_tokens] = (0, _reactMagneticDi.di)([_tokenNames.default], token);
  let token = _tokens[path];
}

However, due to let token we will face the temporal dead zone or "cannot access token before initialization"

---

This PR just handles this moment by removing scope when such case is detected.

[albertogasparin]

Ouch! Thanks for finding this edge case. I guess I've never seen in our projects thanks to no-shadow being enforced.

[theKashey]

It was never seen around because we usually transpile everything down to var. Which is not a bad idea, by removing TDZ you make some things faster.

unction token(path, fallback) {
  var [_tokens] = (0, _reactMagneticDi.di)([_tokenNames.default], token);
  var token = _tokens[path];
}

in this case, it would not be an error, but token will be undefined as it still placed before initialization.

[theKashey]

CI builds may be green, but tests on local fail. @albertogasparin - can you verify how the current solution works for you and on your machine 🙏

[albertogasparin]

After running npm i the test passes in local too. Must be some Babel package update. Might do a global bump soon

[theKashey]

🤔 npm, not yarn