src/third_party/mozjs-45/js/src/jit-test/tests/gc/bug1116306.js

const dbg = new Debugger();
const g = newGlobal();
dbg.addDebuggee(g);
dbg.memory.trackingAllocationSites = true;
g.eval("this.alloc = {}");
verifyprebarriers();
schedulegc(3);
dbg.memory.drainAllocationsLog();