Upgrade jest to 20.1.0-delta.1 (#10211)

* Upgrade jest to 20.1.0-delta.1

This includes multi-project support.

* Use isSpy polyfill that is not available in jest 20

* Remove use of jasmine.createSpyObj

We don't really need this and it's not in jest 20.

* Upgrade record-tests script to use the new jest 20 APIs