ReferenceError: use before declaration in Edge about bootstrapper HOT 9 CLOSED

I have a minimal repro, it requires several conditions to trigger the bug, notably nested lambdas.
This breaks Edge 14.4393:

function g(cb) { return g() }
let f = ({ x }) => g(() => x);
f({ x: 42 }); // should return 42 but throws "use before declaration".

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Found a relevant Chakra bug: chakra-core/ChakraCore#2606.
It was opened 5 days ago, I guess it is a recent update. :(

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We don't need the lambda, we can use function notation if it's going to help, since we only use the scope anyway (no this calls). I'd say we can re-release with a workaround.
Good catch, by the way!

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The bug is not hard to work around as it's very sensible to syntax. Even just adding braces (block) make it vanish.

If we publish a fix the hardest part is making sure minifiers don't simplify the syntax back to broken. For instance, if we add braces or function I would expect a minifier to remove them...

It was not a hard catch as unfortunately now Aurelia ES6 does not run at all in Edge. 😦

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@EisenbergEffect do you want to publish a fix? I can PR one if you want to.

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Oh, definitely. If you send a PR I'll get it out today.

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@EisenbergEffect The fix is in the linked PR, it works for me.

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Merged.

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Release coming in a few minutes.

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