src/third_party/mozjs-45/js/src/jit-test/tests/basic/testExistingPropToJoinedMethodAttempt-3.js

function f() {
    var a = [], i, N = 10;
    for (i = 0; i < N; i++) {
        a[i] = {};
        a[i].m = function() { return 0; };
        a[i].m = function() { return 1; };
    }
    assertEq(a[N - 2].m === a[N - 1].m, false);
    for (i = 0; i < N; i++) {
        var f = a[i].m;
        assertEq(f(), 1);
    }
}
f();
f();