js/src/jit-test/tests/basic/bug705895-1.js


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load(libdir + "immutable-prototype.js");

c = Number.prototype;
function f(o) {
    if (globalPrototypeChainIsMutable() || o !== Object.prototype)
        o.__proto__ = null
    for (x in o) {}
}
for (i = 0; i < 9; i++) {
    f(c)
    if (globalPrototypeChainIsMutable())
        Object.prototype.__proto__ = c;
    for (x in Object.prototype)
        continue;
    f(Math.__proto__);
}