This is pretty sad, and it's another reason why we should not have used a separate check_tdz opcode to check TDZ of scoped variable loads.
Created attachment 270875 [details] the patch
Comment on attachment 270875 [details] the patch View in context: https://bugs.webkit.org/attachment.cgi?id=270875&action=review r=me > Source/JavaScriptCore/ChangeLog:16 > + compilersm and caches can see the intended meaning of the bytecode more easily. typo: compilersm ==> compilers
Landed in http://trac.webkit.org/changeset/196272