src/third_party/mozjs-45/js/src/jit-test/tests/basic/bug754242.js

var g1 = newGlobal();
schedulegc(g1);
gcslice(1);
function testEq(b) {
    var a = deserialize(serialize(b));
}
testEq(Array(1024).join(Array(1024).join((false))));