[Webkit-unassigned] [Bug 161534] Regression(r197648): JSObject::setPrototypeWithCycleCheck() allows for cycles but the rest of the code base does not

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=161534

--- Comment #2 from Geoffrey Garen <ggaren at apple.com> ---
> Yeah, we should teach the rest of the engine that it's OK to have cycles
> in the "getPrototypeDirect" chain.
> Currently, inside JSC itself, this will never happen. However, I guess we
> need to
> teach it this w.r.t the HTML spec.

That's a pretty big change. Are we sure we need to allow cycles? What's the expected behavior if you find a cycle? Is it specified?

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