Update D8 and R8 to 2.1.2-dev

Version: master 2.1.2-dev
This build IS NOT suitable for preview or public release.

Built here: go/r8-releases/raw/2.1.2-dev

Test: TARGET_PRODUCT=aosp_arm64 m -j core-oj
Change-Id: I24c2fe5bb9050896d012bed61a67141c26e3c8ae
2 files changed