os:direntNamePtr for array

[luoliwoshang]

fixed #1114

the syscall.Dirent 's name field in macos、linux、bsd are [1024]int8、 [256]int8 、[256]uint8、[512]int8

name := bytesToString((*[1024]byte)(unsafe.Pointer(direntNamePtr(entry.Name)))[:])

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.71%. Comparing base (f0728c4) to head (417a569).
⚠️ Report is 38 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1173   +/-   ##
=======================================
  Coverage   87.71%   87.71%           
=======================================
  Files          29       29           
  Lines        7279     7279           
=======================================
  Hits         6385     6385           
  Misses        827      827           
  Partials       67       67           

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