[Webkit-unassigned] [Bug 55166] REGRESSION (r79574): fast/dom/global-constructors.html failing on Windows 7 Release (Tests) bots

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=55166





--- Comment #13 from Adam Roben (aroben) <aroben at apple.com>  2011-02-24 13:32:33 PST ---
I put a breakpoint in objectProtoFuncIsPrototypeOf. When evaluating window.CSSValue.prototype.isPrototypeOf(cssPrimitiveValue), I see that thisObj is a JSCSSValuePrototype (good!), and the passed-in argument is a JSCSSPrimitiveValue (also good!). The argument's prototype is JSCSSPrimitiveValuePrototype (still good!). That prototype's prototype is JSCSSValuePrototype (still good!). However, the JSCSSValuePrototype from following the argument's prototype chain, and the JSCSSValuePrototype that is the thisObj, have different addresses. So they are not the same object!

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