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function maybeSetLength(arr, b) {
if (b) {
arr.length = 0x8000_1111;
}
}
var arr = [];
for (var i = 0; i < 1600; i++) {
maybeSetLength(arr, i > 1500);
arr.push(2);
}
assertEq(arr.length, 0x8000_1112);