[Webkit-unassigned] [Bug 151596] [JSC] add missing RequireObjectCoercible() step in destructuring

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=151596

--- Comment #16 from Geoffrey Garen <ggaren at apple.com> ---
> Also, without a new opcode, it won't do the "right" thing for masquerading
> types, eg `var [a, b, c] = document.all` would be a TypeError when it
> shouldn't be (HTMLCollection is iterable, and has an ArrayIterator, per
> http://heycam.github.io/webidl/#es-iterators)

Interesting point. I hadn't considered that.

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