We've never been able to debug the Titanium SDK's C/C++ code via Android Studio before. We should enable this for easier C/C++ development. Currently, we're forced to debug our C/C++ code old-school style via logging functions.
This only applies to the Titanium SDK's test "app" project. It does not apply to customer apps built with Titanium since the SDK library we ship is a "release" version and does not provide debug symbols.
Google documents that they only support C/C++ debugging if you use CMake. This would mean we would have to replace our makefile usage with CMake files instead. While using CMake seems like a waste since Android is our only target, this is what Google pushes and they consider the ndk-build makefile system as a "legacy" feature.