[Bug 28244] Requiring @@toStringTag on instances may have performance implications

https://www.w3.org/Bugs/Public/show_bug.cgi?id=28244

--- Comment #19 from Domenic Denicola <d@domenic.me> ---
It's worth noting that nobody seems to actually follow the spec here. That is,
Object.getOwnPropertySymbols(document.createElement("div")).length is 0 in all
browsers I've tested. (I haven't yet tested Safari.)

Given that, I think we should at the very least remove the mention of class
strings and @@toStringTag from Web IDL and from testharness.js. Or we could
align with Blink's implementation, which at least is implemented in terms of
@@toStringTag, whereas nobody else seems to have updated to ES6 at all.

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Received on Friday, 16 December 2016 18:47:43 UTC