Updates:
Summary: JS builtin ArraySlice is not spec conformant: should use
DefineOwnProperty
Comment #4 on issue 2164 by [email protected]: JS builtin ArraySlice is
not spec conformant: should use DefineOwnProperty
http://code.google.com/p/v8/issues/detail?id=2164
My initial analysis was completely incorrect. I am sorry for the confusion.
C++ side is _completely_ correct and falls through to JavaScript built in.
It's JavaScript builtin that is not correct: both SimpleSlice and
SmartSlice use normal assignment instead of [[DefineOwnProperty]] and
accessor descriptor without a setter is silently preventing it.
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