Don't append default package when the tag name itself is qualified
(i.e. contains a '.').
Also moved the inflater test cases into test/instrumentation to the
same place as other instrumentation tests. (Other tests were moved
with the introduction of Robolectric tests)
Bug: 34254689
Test: ./gradlew connectedAndroidTest
Change-Id: I2f22613f80b4e3a65a73c4a4f8bd084ad3d4654f