ART: Report array and proxy classes in ClassLoad & ClassPrepare

We need to report ClassLoad and ClassPrepare events when proxy
classes are created.

We also generate ClassLoad and ClassPrepare events to match the
VmObjectAlloc for arrays.

Bug: 31684920
Test: art/test.py --host -r -t 912
Change-Id: I66901a9d7ff8c1f60f075dfbdd3a28d00ab60bdc
3 files changed