ART: More refactor for JVMTI run tests (1/3)

Put (most) tests into a new package and give them dedicated
class names (Test9XY).

NOTE: BROKEN WITHOUT A FOLLOW-UP CL TO CHANGE DIRECTORY STRUCTURE
      AND FILE NAMES!

Bug: 32072923
Test: None
Change-Id: I291b0543f7782914e446a74f0d9037020c88e5b5