Added some results for the new Map/Set tests

 * Added IE Tech Preview results for the 2 new Map/Set tests, and fixed old Firefox/Chrome results.

 * Reordered the Map/Set tests so that tests involving the constructor occur before tests involving set()/add(), which then come before specific method tests.

 * Fixed something in the Proxy "setPrototypeOf" test which, while not clear whether it's spec-compliant, was causing some results to be unhelpful.

 * Also fixed two Reflect results for IETP.