A common criticism of our Android Studio integration is that it cannot open arbitration files within the source tree. 

I suspect this might be start to "just work" if we generate the root build.gradle file into //src rather than into //out/Debug/gradle.

To try this out, it should just be a matter of tweaking the generate_gradle.py script to generated all other dependent files into //out/Debug/gradle, while making the project root (via settings.gradle?) be in the root.