NEW 173158
[JSC] We should have own property enumeration cache 
https://bugs.webkit.org/show_bug.cgi?id=173158
Summary [JSC] We should have own property enumeration cache
Yusuke Suzuki
Reported 2017-06-09 07:34:24 PDT
Currently, we only have property enumeration cache for for-in. But we should have own property cache to accelerate Object.keys(), which is frequently used in many programs, like, Speedometer.
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