Generate @NonNull setter args and @MaySetToNull to opt out

Bug: 143653080
Test: source /usr/local/google/home/eugenesusla/android2/master/frameworks/base/tests/Codegen/runTest.sh
Change-Id: Iba8da34c91fd09e266429ab131add1d53449506b
(cherry picked from commit ab14c55c1f085153f09741e497eb0cdeee38f0e1)
13 files changed