Defines in bsd/hfs/hfscommon/Misc

• EXPLICIT_BUFFER_RELEASES bsd/hfs/hfscommon/Misc/VolumeAllocation.c:174
• kAllBitsSetInWord bsd/hfs/hfscommon/Misc/VolumeAllocation.c:192
• kHighBitInWordMask bsd/hfs/hfscommon/Misc/VolumeAllocation.c:191
• kIDSectorOffset bsd/hfs/hfscommon/Misc/VolumeRequests.c:207
• kLowBitInWordMask bsd/hfs/hfscommon/Misc/VolumeAllocation.c:190