Because SetElement & co are interdependent, this patch handlfies all of JSObject::
-SetElement
-SetFastElement
-SetDictionaryElement
-SetFastDoubleElement
-SetElementWithInterceptor
-SetElementWithoutInterceptor
-SetElementWithCallbackSetterInPrototype

R=mstarzinger@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/66803002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17757 ce2b1a6d-e550-0410-aec6-3dcde31c8c00