Typedefs starting with `h' in bsd/hfs/hfscommon/headers/system

• Handle bsd/hfs/hfscommon/headers/system/MacOSTypes.h:190
• HIOParamPtr bsd/hfs/hfscommon/headers/system/MacOSStubs.h:948
• HVolumeParamPtr bsd/hfs/hfscommon/headers/system/MacOSStubs.h:1049