ART: Allow to set and copy conflicts in the verifier

As long as conflicts are not actively being used, it is OK to set
them in a register line or copy them around.

Bug: 22331663

(cherry picked from commit 38536287f61c9c0fc3bab8c1950cf8c74881482a)

Change-Id: I61999e2d9c92f9bdedcb0a5dea54df3c5bb130ca
4 files changed