Move ReflectionTest.StaticMainMethod to compiler/. am: 51d4445f21

Original change: https://android-review.googlesource.com/c/platform/art/+/2232131

Change-Id: I29534accef708ffd1c223648b2d2428f7c5584e7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>