src/third_party/mozjs-45/js/src/tests/ecma_6/Proxy/regress-bug1037770.js

foo = 1;
Object.defineProperty(this, "foo", {writable:false, configurable:true});
foo = 2;
assertEq(foo, 1);

if (typeof reportCompare === "function")
    reportCompare(true, true);