Add a few tests for `ArtMethod::Invoke*()` helpers. am: ad6598372d am: 4761a487c4

Original change: https://android-review.googlesource.com/c/platform/art/+/2310529

Change-Id: I3a87a4a1e70b7c7777dd14e46b84a38f027b2869
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>