js/src/jit-test/tests/arguments/external-arguments-element-deleted-exists.js


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function foo(x,y) {
    delete arguments[1];
    return bar(arguments);
}

function bar(x) {
    return (1 in x) + arguments.length;
}

var sum = 0;
for (var i = 0; i < 100; i++) {
    sum += foo(1,2);
}
assertEq(sum, 100);