cross-global-for-in.js

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var global = newGlobal();

var arrayIter = (new global.Array())[global.Symbol.iterator]();

var ArrayIteratorPrototype = Object.getPrototypeOf(arrayIter);

var arrayIterProtoBase = Object.getPrototypeOf(ArrayIteratorPrototype);

var IteratorPrototype = arrayIterProtoBase;

delete IteratorPrototype.next;

var obj = global.eval('({a: 1})')

for (var x in obj) {}

assertEq(x, "a");