These files should be renamed zeroInterpreter, or something.

in hotspot/src/cpu/zero/vm:
cppInterpreterGenerator_zero.cpp cppInterpreter_zero.cpp cppInterpreter_zero.hpp

in src/share/vm/interpreter:
cppInterpreter.cpp cppInterpreterGenerator.cpp cppInterpreterGenerator.hpp cppInterpreter.hpp

Or even put in to a zero only directory so that they can be pushed without JPRT. Although I think the ones in src/share/vm/interpreter are in the right place because bytecodeInterpreter is there. I think the main thing is to remove the cpp at the front to eliminate confusion with the old cpp interpreter.

Or make a directory like: src/share/vm/zero and put all the zero interpreter files there and make this directory one that can be pushed without JPRT by outside contributors.