Typedefs starting with `o' in osfmk/mach

• old_memory_object_attr_info_data_t osfmk/mach/memory_object.h:198
• old_memory_object_attr_info_t osfmk/mach/memory_object.h:197
• old_memory_object_behave_info_data_t osfmk/mach/memory_object.h:189
• old_memory_object_behave_info_t osfmk/mach/memory_object.h:188
• OutHeadP osfmk/mach/rpc.h:144