RESOLVED FIXED Bug 68176
devirtualize preventExtensions 
https://bugs.webkit.org/show_bug.cgi?id=68176
Summary devirtualize preventExtensions
Gavin Barraclough
Reported 2011-09-15 11:44:36 PDT
This is virtual due to problems in JSFunction putting the prototype property, but we can fix this problem a different way, just setting the checkReadOnly flag to false in the put.
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Gavin Barraclough
Comment 1 2011-09-15 11:46:26 PDT
Fixed in r95205
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