This is xnu-8019. See this file in:
Directory listing for xnu-8019//iokit/Tests/TestServices
TestIOConnectMapMemoryPortLeak45265408.cpp
TestIOConnectMapMemoryPortLeak45265408.h
TestIODeviceMemoryRosetta.cpp
TestIODeviceMemoryRosetta.h
TestIOServiceUserNotification.cpp
TestIOServiceUserNotification.h