Add missing assert.h and functional includes am: bd0f277e83 am: bd27ff38da

Original change: https://android-review.googlesource.com/c/platform/art/+/2200114

Change-Id: Iee8efc02a1b120cb9e9802d6909cc6dae2a5a279
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>