var f = Symbol(), g = Symbol(), h = Symbol();

function foo(o) {
    for (var i = 0; i < 100; ++i)
        o[f] = (o[f] | 0) + 42;
}

noInline(foo);

for (var i = 0; i < 100000; ++i) {
    var object;
    if ((i % 3) == 0)
        object = {[g]:3};
    else if ((i % 3) == 1)
        object = {[f]:1, [g]:2};
    else if ((i % 3) == 2)
        object = {[g]:1, [f]:2};
    foo(object);
    if (object[f] != 42 * 100 + (i % 3))
        throw "Error: bad result for i = " + i + ": " + object[f];
}

var r = {[g]:3, [h]:4, [f]:5};
foo(r);
if (r[f] != 5 + 42 * 100)
    throw "Error: bad result at end: " + r[f];