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function testArrayDensityChange() {
var x = [];
var count = 0;
for (var i=0; i < 100; ++i) {
x[i] = "asdf";
}
for (var i=0; i < x.length; ++i) {
if (i == 51)
{
x[199] = "asdf";
}
if (x[i])
count += x[i].length;
}
return count;
}
assertEq(testArrayDensityChange(), 404);