Revert "Revert "Hold dex caches live in class table""
am: c9dbb1df3b

* commit 'c9dbb1df3b5c06ba122cacaf35b17cb53c6be3c6':
  Revert "Revert "Hold dex caches live in class table""

Change-Id: Ib4ff1862aa38615901caddd3ad54aabadde55b5a