all: update references to symbols moved from os to io/fs

The old os references are still valid, but update our code
to reflect best practices and get used to the new locations.

Code compiled with the bootstrap toolchain
(cmd/asm, cmd/dist, cmd/compile, debug/elf)
must remain Go 1.4-compatible and is excluded.

For #41190.

Change-Id: I8f9526977867c10a221e2f392f78d7dec073f1bd
Reviewed-on: https://go-review.googlesource.com/c/go/+/243907
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/src/path/filepath/path.go b/src/path/filepath/path.go
index 26f1833189..dffd27db14 100644
--- a/src/path/filepath/path.go
+++ b/src/path/filepath/path.go
@@ -13,6 +13,7 @@ package filepath
 
 import (
 	"errors"
+	"io/fs"
 	"os"
 	"sort"
 	"strings"
@@ -339,7 +340,7 @@ var SkipDir = errors.New("skip this directory")
 // visited by Walk. The path argument contains the argument to Walk as a
 // prefix; that is, if Walk is called with "dir", which is a directory
 // containing the file "a", the walk function will be called with argument
-// "dir/a". The info argument is the os.FileInfo for the named path.
+// "dir/a". The info argument is the fs.FileInfo for the named path.
 //
 // If there was a problem walking to the file or directory named by path, the
 // incoming error will describe the problem and the function can decide how
@@ -350,12 +351,12 @@ var SkipDir = errors.New("skip this directory")
 // Walk skips the directory's contents entirely. If the function returns SkipDir
 // when invoked on a non-directory file, Walk skips the remaining files in the
 // containing directory.
-type WalkFunc func(path string, info os.FileInfo, err error) error
+type WalkFunc func(path string, info fs.FileInfo, err error) error
 
 var lstat = os.Lstat // for testing
 
 // walk recursively descends path, calling walkFn.
-func walk(path string, info os.FileInfo, walkFn WalkFunc) error {
+func walk(path string, info fs.FileInfo, walkFn WalkFunc) error {
 	if !info.IsDir() {
 		return walkFn(path, info, nil)
 	}