src/third_party/mozjs-45/js/src/jit-test/tests/gc/bug-1053676.js

// |jit-test| ion-eager;
if (typeof Symbol !== "function") quit(0);

var x
(function() {
    x
}());
verifyprebarriers();
x = x * 0
x = Symbol();
gc();
evalcx("x=1", this);