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// Deleting String.prototype.iterator makes for-of stop working on strings.
load(libdir + "asserts.js");
load(libdir + "iteration.js");
delete String.prototype[Symbol.iterator];
assertThrowsInstanceOf(function () { for (var v of "abc") ; }, TypeError);
assertThrowsInstanceOf(function () { for (var v of new String("abc")) ; }, TypeError);
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