Android res/raw resources from libraries are not included in the final APK

Created by: felipecsl

We're seeing this issue while trying to integrate Buck into our project. We first noticed this due to a crash on the jodatime-android library, which uses reflection to load resources from R.raw. Turns out that the raw class for library dependencies (aar) is completely empty when building with buck. The same class is correctly populated when building with gradle. Is this a known issue/limitation?