description(
"Tests that the DFG's interference analysis knows that a holy PutByVal interferes with a GetArrayLength."
);

function foo(array) {
    var x = array.length;
    array[1] = 42;
    return [x, array.length];
}

for (var i = 0; i < 100; ++i)
    shouldBe("foo([75])", "[1,2]");