make FILE_ATTRIBUTE__* available on all platforms

Fixes: #14865

Author: Ravencentric

stdlib/@tests/stubtest_allowlists/darwin.txt

@@ -45,9 +45,6 @@ multiprocessing.popen_spawn_win32  # exists on Darwin but fails to import
 readline.append_history_file  # Only available if compiled with GNU readline, not editline
 select.poll  # Actually a function; we have a class so it can be used as a type
 
-# Some of these exist on non-windows, but they are useless and this is not intended
-stat.FILE_ATTRIBUTE_[A-Z_]+
-
 tkinter.Tk.createfilehandler  # Methods that come from __getattr__() at runtime
 tkinter.Tk.deletefilehandler  # Methods that come from __getattr__() at runtime
 

stdlib/@tests/stubtest_allowlists/linux.txt

@@ -54,9 +54,6 @@ _?socket.SOL_IPX
 _?socket.SOL_NETROM
 _?socket.SOL_ROSE
 
-# Some of these exist on non-windows, but they are useless and this is not intended
-stat.FILE_ATTRIBUTE_[A-Z_]+
-
 # This is available on Linux, but it's documented as for kernel debugging and
 # not present on GitHub Actions runners.
 termios.TIOCTTYGSTRUCT

stdlib/stat.pyi

@@ -1,7 +1,33 @@
+# pyright: reportConstantRedefinition=false
+
 import sys
-from _stat import *
+from _stat import *  # pyright: ignore[reportGeneralTypeIssues]
 from typing import Final
 
+# _stat.py defines FILE_ATTRIBUTE_* constants conditionally,
+# making them available only at runtime on Windows.
+# stat.py unconditionally redefines the same FILE_ATTRIBUTE_* constants
+# on all platforms.
+# See:
+# <https://github.com/python/cpython/blob/447c7a89fb41b7fa84b9b26f111aedd649bc5400/Lib/stat.py#L181-L200>
+FILE_ATTRIBUTE_ARCHIVE: Final = 32
+FILE_ATTRIBUTE_COMPRESSED: Final = 2048
+FILE_ATTRIBUTE_DEVICE: Final = 64
+FILE_ATTRIBUTE_DIRECTORY: Final = 16
+FILE_ATTRIBUTE_ENCRYPTED: Final = 16384
+FILE_ATTRIBUTE_HIDDEN: Final = 2
+FILE_ATTRIBUTE_INTEGRITY_STREAM: Final = 32768
+FILE_ATTRIBUTE_NORMAL: Final = 128
+FILE_ATTRIBUTE_NOT_CONTENT_INDEXED: Final = 8192
+FILE_ATTRIBUTE_NO_SCRUB_DATA: Final = 131072
+FILE_ATTRIBUTE_OFFLINE: Final = 4096
+FILE_ATTRIBUTE_READONLY: Final = 1
+FILE_ATTRIBUTE_REPARSE_POINT: Final = 1024
+FILE_ATTRIBUTE_SPARSE_FILE: Final = 512
+FILE_ATTRIBUTE_SYSTEM: Final = 4
+FILE_ATTRIBUTE_TEMPORARY: Final = 256
+FILE_ATTRIBUTE_VIRTUAL: Final = 65536
+
 if sys.version_info >= (3, 13):
     # https://github.com/python/cpython/issues/114081#issuecomment-2119017790
     SF_RESTRICTED: Final = 0x00080000