Fix another miranda method moving GC bug

Need to copy miranda methods over before we allocate the new vtable
or else we may have stale miranda gc roots.

(cherry picked from commit 6e80460bdf0aa9bd273d4a4d665d679c651b5f4f)

Bug: 21664466
Change-Id: Ib3e415bb9e7df7abfa18c98fe01f790fa39622dc
2 files changed