60   struct DataDescriptor_32 {  struct in lldb_private::formatters::NSSetISyntheticFrontEnd
61     uint32_t _used : 26;
62     uint32_t _szidx : 6;
145   struct DataDescriptor_32 {  struct
146     uint32_t _used : 26;
147     uint32_t _size;
148     uint32_t _mutations;
149     uint32_t _objs_addr;
164   struct DataDescriptor_32 {  struct
165     uint32_t _used : 26;
166     uint32_t _size;
167     uint32_t _objs_addr;
168     uint32_t _mutations;
183   struct DataDescriptor_32 {  struct
184     uint32_t _cow;
186     uint32_t _objs_addr;
187     uint32_t _muts;
188     uint32_t _used : 26;
189     uint32_t _szidx : 6;