ModuleRootModel.getCompilerOutputPath() missing in 8.0?

I created a plugin in 7 that uses the following API:

ModuleRootModel.getCompilerOutputPath()

This method is missing in 8 and my plugin throws an ugly method not found exception.

1) Why was it removed?

2) Why not at least deprecate first instead of just removing an API?

3) Without that method, how can I determine the compiler output path?