Unbundled build fixes for tests

Build tests against current SDK. Use internal copy of LaunchPerformanceBase.
Use android-support-test instead of android.test.runner. Use reflection
to call AsyncTaskLoader.waitForLoader. Use public PhoneNumberUtil APIs.

Bug:23642167
Change-Id: I66841fe9429e374a931a5c6eada5afce932c5bef
(cherry picked from commit 2f8ebf44226b979a214b68189b832429aec04aed)