src/third_party/mozjs-45/js/src/jit-test/tests/ion/bug732851.js

var OMIT = {};
var WRITABLES = [true, false, OMIT];
{
  var desc = {};
  function put(field, value)
    desc[field] = value;
  WRITABLES.forEach(function(writable) {
    put("writable", writable)
  });
};