fs: fix fsPromises.lchmod error on non-Mac

On non-macOS, fsPromises.lchmod throws AssertionError.
Expected behavior is `Error [ERR_METHOD_NOT_IMPLEMENTED]`.
`ERR_METHOD_NOT_IMPLEMENTED()` requires argument, but it wasn't set.

Fixes `ERR_METHOD_NOT_IMPLEMENTED()` to
`ERR_METHOD_NOT_IMPLEMENTED('lchmod()')`.

PR-URL: #21435
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Weijia Wang <starkwang@126.com>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Yuta Hiroto <hello@hiroppy.me>

lib/internal/fs/promises.js

@@ -371,7 +371,7 @@ async function chmod(path, mode) {
 
 async function lchmod(path, mode) {
  if (O_SYMLINK === undefined)
- throw new ERR_METHOD_NOT_IMPLEMENTED();
+ throw new ERR_METHOD_NOT_IMPLEMENTED('lchmod()');
 
  const fd = await open(path, O_WRONLY | O_SYMLINK);
  return fchmod(fd, mode).finally(fd.close.bind(fd));

test/parallel/test-fs-promises.js

@@ -140,15 +140,26 @@ function verifyStatObject(stat) {
  (await realpath(newLink)).toLowerCase());
  assert.strictEqual(newPath.toLowerCase(),
  (await readlink(newLink)).toLowerCase());
+
+ const newMode = 0o666;
  if (common.isOSX) {
  // lchmod is only available on macOS
- const newMode = 0o666;
  await lchmod(newLink, newMode);
  stats = await lstat(newLink);
  assert.strictEqual(stats.mode & 0o777, newMode);
+ } else {
+ await Promise.all([
+ assert.rejects(
+ lchmod(newLink, newMode),
+ common.expectsError({
+ code: 'ERR_METHOD_NOT_IMPLEMENTED',
+ type: Error,
+ message: 'The lchmod() method is not implemented'
+ })
+ )
+ ]);
  }
 
-
  await unlink(newLink);
  }