Typedefs in ufs/lfs

• BLOCK_INFO ufs/lfs/lfs.h:333
• CLEANERINFO ufs/lfs/lfs.h:203
• FINFO ufs/lfs/lfs.h:74
• IFILE ufs/lfs/lfs.h:188
• SEGSUM ufs/lfs/lfs.h:215
• SEGUSE ufs/lfs/lfs.h:56