Merge "Make dex stubs jar available for use by hidden API processing" am: 39c1683b33 am: 5b8c189234 am: ffc07c8267

Original change: https://android-review.googlesource.com/c/platform/libcore/+/1677803

Change-Id: I79ffdd16c599c1fe4318837227d4f5d0ae977f05