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function inObjectTest() {
var o = {p: 1, q: 2, r: 3, s: 4, t: 5};
var r = 0;
for (var i in o) {
if (!(i in o))
break;
if ((i + i) in o)
break;
++r;
}
return r;
}
assertEq(inObjectTest(), 5);