Typedefs in ufs/lfs

• BLOCK_INFO ufs/lfs/lfs.h:300
• CLEANERINFO ufs/lfs/lfs.h:198
• FINFO ufs/lfs/lfs.h:73
• IFILE ufs/lfs/lfs.h:183
• SEGSUM ufs/lfs/lfs.h:210
• SEGUSE ufs/lfs/lfs.h:56