freebsd: fix build, maybe

R=r
CC=golang-dev
https://golang.org/cl/909041
diff --git a/src/pkg/os/stat_freebsd.go b/src/pkg/os/stat_freebsd.go
index 84a6c78..dd33d8c 100644
--- a/src/pkg/os/stat_freebsd.go
+++ b/src/pkg/os/stat_freebsd.go
@@ -10,29 +10,29 @@
 	return stat.Mode&syscall.S_IFMT == syscall.S_IFLNK
 }
 
-func dirFromStat(name string, dir *Dir, lstat, stat *syscall.Stat_t) *Dir {
-	dir.Dev = uint64(stat.Dev)
-	dir.Ino = uint64(stat.Ino)
-	dir.Nlink = uint64(stat.Nlink)
-	dir.Mode = uint32(stat.Mode)
-	dir.Uid = stat.Uid
-	dir.Gid = stat.Gid
-	dir.Rdev = uint64(stat.Rdev)
-	dir.Size = uint64(stat.Size)
-	dir.Blksize = uint64(stat.Blksize)
-	dir.Blocks = uint64(stat.Blocks)
-	dir.Atime_ns = uint64(syscall.TimespecToNsec(stat.Atimespec))
-	dir.Mtime_ns = uint64(syscall.TimespecToNsec(stat.Mtimespec))
-	dir.Ctime_ns = uint64(syscall.TimespecToNsec(stat.Ctimespec))
+func fileInfoFromStat(name string, fi *FileInfo, lstat, stat *syscall.Stat_t) *FileInfo {
+	fi.Dev = uint64(stat.Dev)
+	fi.Ino = uint64(stat.Ino)
+	fi.Nlink = uint64(stat.Nlink)
+	fi.Mode = uint32(stat.Mode)
+	fi.Uid = stat.Uid
+	fi.Gid = stat.Gid
+	fi.Rdev = uint64(stat.Rdev)
+	fi.Size = uint64(stat.Size)
+	fi.Blksize = uint64(stat.Blksize)
+	fi.Blocks = uint64(stat.Blocks)
+	fi.Atime_ns = uint64(syscall.TimespecToNsec(stat.Atimespec))
+	fi.Mtime_ns = uint64(syscall.TimespecToNsec(stat.Mtimespec))
+	fi.Ctime_ns = uint64(syscall.TimespecToNsec(stat.Ctimespec))
 	for i := len(name) - 1; i >= 0; i-- {
 		if name[i] == '/' {
 			name = name[i+1:]
 			break
 		}
 	}
-	dir.Name = name
+	fi.Name = name
 	if isSymlink(lstat) && !isSymlink(stat) {
-		dir.FollowedSymlink = true
+		fi.FollowedSymlink = true
 	}
-	return dir
+	return fi
 }