src/third_party/mozjs-45/js/src/jit-test/tests/gc/bug-1206677.js

if (!('oomTest' in this) || helperThreadCount() === 0)
  quit(0);

var lfGlobal = newGlobal();
for (lfLocal in this) {
    if (!(lfLocal in lfGlobal)) {
        lfGlobal[lfLocal] = this[lfLocal];
    }
}
const script = 'oomTest(() => getBacktrace({args: true, locals: "123795", thisprops: true}));';
lfGlobal.offThreadCompileScript(script);
lfGlobal.runOffThreadScript();