Initializer expression on for-in syntax subject

Oliver Hunt oliver at
Thu Mar 13 16:59:58 PDT 2014

JSC has been trying to kill off the initialiser expression in the for(in) statement, but we've encountered a bunch of reasonably significant content that breaks with it disallowed (a particularly prominent one currently is, so we will be bringing back support for

for (var Identifier = Expression in Expression)

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