src/third_party/mozjs-45/js/src/jit-test/tests/auto-regress/bug487534.js

// Binary: cache/js-dbg-32-96746395df4f-linux
// Flags: -j
//
var fs = { x: /a/, y: /a/, z: /a/ };
for (var p in fs) { this[fs[p]] = null; }