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

var isTrue = true;

function g(x) {
    return x;
}

function f() {
    return g.apply(null, isTrue ? ["happy"] : arguments);
}

for (var i = 0; i < 18; ++i)
    assertEq(f("sad"), "happy");