JSTests/microbenchmarks/for-in-double-array-with-own-named.js

function test(object) {
    sum = 0;
    for (var i in object)
        sum += object[i];
    return sum;
}
noInline(test);

for (let i = 0; i < 1e5; ++i) {
    var o = Array(100).fill(1.123214231);
    o.a = 0;
    o.b = "surprise string";
    test(o);
}