Created by: sheldonneuberger
See #1730 (closed). Spec: https://android.googlesource.com/platform/ndk/+/ndk-release-r16/docs/UnifiedHeaders.md
NDK 15 only support android api 14+, so I think there's a number of tests that break because of this. I also haven't added any tests for this PR yet, but it does compile a sample project.