Add missing __match_args__ attributes to several unix-only structseq classes (#7587)

stdlib/grp.pyi

@@ -1,11 +1,13 @@
 import sys
 from _typeshed import structseq
 from typing import Any
-from typing_extensions import final
+from typing_extensions import Final, final
 
 if sys.platform != "win32":
     @final
     class struct_group(structseq[Any], tuple[str, str | None, int, list[str]]):
+        if sys.version_info >= (3, 10):
+            __match_args__: Final = ("gr_name", "gr_passwd", "gr_gid", "gr_mem")
         @property
         def gr_name(self) -> str: ...
         @property

stdlib/os/__init__.pyi

@@ -920,6 +920,8 @@ else:
     if sys.platform != "darwin":
         @final
         class waitid_result(structseq[int], tuple[int, int, int, int, int]):
+            if sys.version_info >= (3, 10):
+                __match_args__: Final = ("si_pid", "si_uid", "si_signo", "si_status", "si_code")
             @property
             def si_pid(self) -> int: ...
             @property
@@ -977,6 +979,8 @@ else:
 if sys.platform != "win32":
     @final
     class sched_param(structseq[int], tuple[int]):
+        if sys.version_info >= (3, 10):
+            __match_args__: Final = ("sched_priority",)
         def __new__(cls: type[Self], sched_priority: int) -> Self: ...
         @property
         def sched_priority(self) -> int: ...

stdlib/pwd.pyi

@@ -1,11 +1,13 @@
 import sys
 from _typeshed import structseq
 from typing import Any
-from typing_extensions import final
+from typing_extensions import Final, final
 
 if sys.platform != "win32":
     @final
     class struct_passwd(structseq[Any], tuple[str, str, int, int, str, str, str]):
+        if sys.version_info >= (3, 10):
+            __match_args__: Final = ("pw_name", "pw_passwd", "pw_uid", "pw_gid", "pw_gecos", "pw_dir", "pw_shell")
         @property
         def pw_name(self) -> str: ...
         @property

stdlib/resource.pyi

@@ -1,7 +1,7 @@
 import sys
 from _typeshed import structseq
 from typing import overload
-from typing_extensions import final
+from typing_extensions import Final, final
 
 if sys.platform != "win32":
     RLIMIT_AS: int
@@ -29,6 +29,25 @@ if sys.platform != "win32":
     class struct_rusage(
         structseq[float], tuple[float, float, int, int, int, int, int, int, int, int, int, int, int, int, int, int]
     ):
+        if sys.version_info >= (3, 10):
+            __match_args__: Final = (
+                "ru_utime",
+                "ru_stime",
+                "ru_maxrss",
+                "ru_ixrss",
+                "ru_idrss",
+                "ru_isrss",
+                "ru_minflt",
+                "ru_majflt",
+                "ru_nswap",
+                "ru_inblock",
+                "ru_oublock",
+                "ru_msgsnd",
+                "ru_msgrcv",
+                "ru_nsignals",
+                "ru_nvcsw",
+                "ru_nivcsw",
+            )
         @property
         def ru_utime(self) -> float: ...
         @property

stdlib/signal.pyi

@@ -3,7 +3,7 @@ from _typeshed import structseq
 from enum import IntEnum
 from types import FrameType
 from typing import Any, Callable, Iterable, Union
-from typing_extensions import final
+from typing_extensions import Final, final
 
 NSIG: int
 
@@ -148,6 +148,8 @@ else:
         SIGRTMIN: Signals
         @final
         class struct_siginfo(structseq[int], tuple[int, int, int, int, int, int, int]):
+            if sys.version_info >= (3, 10):
+                __match_args__: Final = ("si_signo", "si_code", "si_errno", "si_pid", "si_uid", "si_status", "si_band")
             @property
             def si_signo(self) -> int: ...
             @property

stdlib/spwd.pyi

@@ -1,11 +1,23 @@
 import sys
 from _typeshed import structseq
 from typing import Any
-from typing_extensions import final
+from typing_extensions import Final, final
 
 if sys.platform != "win32":
     @final
     class struct_spwd(structseq[Any], tuple[str, str, int, int, int, int, int, int, int]):
+        if sys.version_info >= (3, 10):
+            __match_args__: Final = (
+                "sp_namp",
+                "sp_pwdp",
+                "sp_lstchg",
+                "sp_min",
+                "sp_max",
+                "sp_warn",
+                "sp_inact",
+                "sp_expire",
+                "sp_flag",
+            )
         @property
         def sp_namp(self) -> str: ...
         @property