Update objects-freed after marking phase

Test: art/test/testrunner/testrunner.py --host -t 099-vmdebug
Bug: 160737021
Change-Id: I1cd793ebce386fae734c78cd55fd71119d5c9790
(cherry picked from commit 565d0ee0b0a491d7e4a50977b1ce2fca7e50c891)
Merged-In: I1cd793ebce386fae734c78cd55fd71119d5c9790
3 files changed