Macros starting with `s' in osfmk/vm

• SAVE_HINT osfmk/vm/vm_map.c:898
• SET_NEXT_PAGE osfmk/vm/vm_resident.c:1968
• SPANS_CLUSTER osfmk/vm/vm_fault.c:1048
• stob osfmk/vm/vm_external.h:82