Macros in bsd/hfs/hfscommon/Unicode

• Is7BitASCII bsd/hfs/hfscommon/Unicode/UnicodeWrappers.c:145
• IS_DECOMPOSABLE bsd/hfs/hfscommon/Unicode/ConvertUTF.c:315
• IsSpecialASCIIChar bsd/hfs/hfscommon/Unicode/UnicodeWrappers.c:147