Macros in bsd/miscfs/fdesc

• cttyvp bsd/miscfs/fdesc/fdesc_vnops.c:85
• FD_NHASH bsd/miscfs/fdesc/fdesc_vnops.c:99
• VFSTOFDESC bsd/miscfs/fdesc/fdesc.h:94
• VTOFDESC bsd/miscfs/fdesc/fdesc.h:95