refactor(dir): use vim.fs.dir()

runtime/lua/nvim/dir.lua

@@ -3,7 +3,6 @@
 
 local api = vim.api
 local fs = vim.fs
-local uv = vim.uv
 
 local M = {}
 
@@ -50,17 +49,13 @@ end
 ---@param dir string
 ---@return boolean
 local function render(buf, dir)
-  -- TODO(#39878): drop this scandir probe once vim.fs.dir() can report
-  -- traversal errors.
-  local handle, err = uv.fs_scandir(dir)
-  if not handle then
-    vim.notify('dir: ' .. (err or ('cannot read directory: ' .. dir)), vim.log.levels.ERROR)
-    return false
-  end
-
   ---@type { name: string, dir: boolean }[]
   local items = {}
-  for name, type in fs.dir(dir) do
+  for name, type, err in fs.dir(dir, { err = true }) do
+    if err then
+      vim.notify('dir: ' .. err, vim.log.levels.ERROR)
+      return false
+    end
     if type == 'link' and vim.fn.isdirectory(fs.joinpath(dir, name)) == 1 then
       type = 'directory'
     end