Unify simplification passes after high-level optimizations am: ec45c7711c am: 2695037006 am: 67354cb5f9

Original change: https://android-review.googlesource.com/c/platform/art/+/2419206

Change-Id: I546dea961e6ab3eeb79fcc4ed1f11e6e02c3efe0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>