Add a method to OatFileAssistantContext to fetch all information. am: 8911b301da am: 154db44b1b am: 18e0976b5f am: 06c8dd5d0c

Original change: https://android-review.googlesource.com/c/platform/art/+/2203777

Change-Id: Ied844e491cbb4e8788db45d6bf925ebe15cfb781
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>