Macros starting with `i' in machdep/ppc

• INC_STAT machdep/ppc/htab.c:169
• IsGossamer machdep/ppc/powermac.h:54
• IS_KLOADED machdep/ppc/trap.c:86
• IsPEx machdep/ppc/powermac.h:50
• IsPowerBook machdep/ppc/powermac.h:52
• IsPowerStar machdep/ppc/powermac.h:56
• IsPowerSurge machdep/ppc/powermac.h:48
• isync machdep/ppc/proc_reg.h:427
• IsYosemite machdep/ppc/powermac.h:58