[Worker] Test unhandled promise rejection event.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

Starting worker: ../resources/unhandled-promise-rejection-handle-during-event-in-workers.js
[Worker] global.promise[0] = Promise.reject(0);
[Worker] global.promise[1] = Promise.reject(1);
[Worker] global.promise[2] = Promise.reject(2);
PASS [Worker] error.type is "unhandledrejection"
PASS [Worker] error.cancelable is true
PASS [Worker] error.promise is promise[0]
PASS [Worker] error.reason is 0
[Worker] global.promise[1].catch(function () { });
[Worker] global.promise[2].catch(function () { });
PASS successfullyParsed is true

TEST COMPLETE