(fillout_mntent): Ditto.
* path.cc (path_conv::get_nt_native_path): Use path_conv's
has_dos_filenames_only method.
(path_conv::check): Add PATH_IHASH flag if FS has unreliable inode
numbers.
(symlink_info::check_shortcut): Or symlink flags to pflags.
(symlink_info::check_sysfile): Ditto. Change test accordingly.
(symlink_info::check_reparse_point): Ditto.
(symlink_info::check_nfs_symlink): Ditto.
(symlink_info::check): Check PATH_DOS flag in call to get_nt_native_path
to utilize mount flag. Ditto in test for potential restarting. Set
PATH_DOS if FS only allows DOS filename rules.
* path.h (enum path_types): Add PATH_DOS and PATH_IHASH.
(path_conv::hasgood_inode): Check PATH_IHASH instead of
fs.hasgood_inode.
(path_conv::has_dos_filenames_only): New method.
* include/sys/mount.h (MOUNT_DOS): New mount flag.
(MOUNT_IHASH): Ditto.