Fix Windows-specific allowlist entries in _msi, msilib, selectors and subprocess (#10822)

stdlib/_msi.pyi

@@ -1,6 +1,7 @@
 import sys
 
 if sys.platform == "win32":
+    class MSIError(Exception): ...
     # Actual typename View, not exposed by the implementation
     class _View:
         def Execute(self, params: _Record | None = ...) -> None: ...

stdlib/msilib/text.pyi

@@ -3,5 +3,5 @@ import sys
 if sys.platform == "win32":
     ActionText: list[tuple[str, str, str | None]]
     UIText: list[tuple[str, str | None]]
-
+    dirname: str
     tables: list[str]

stdlib/selectors.pyi

@@ -59,12 +59,13 @@ class DevpollSelector(BaseSelector):
     def select(self, timeout: float | None = ...) -> list[tuple[SelectorKey, _EventMask]]: ...
     def get_map(self) -> Mapping[FileDescriptorLike, SelectorKey]: ...
 
-class KqueueSelector(BaseSelector):
-    def fileno(self) -> int: ...
-    def register(self, fileobj: FileDescriptorLike, events: _EventMask, data: Any = None) -> SelectorKey: ...
-    def unregister(self, fileobj: FileDescriptorLike) -> SelectorKey: ...
-    def select(self, timeout: float | None = None) -> list[tuple[SelectorKey, _EventMask]]: ...
-    def get_map(self) -> Mapping[FileDescriptorLike, SelectorKey]: ...
+if sys.platform != "win32":
+    class KqueueSelector(BaseSelector):
+        def fileno(self) -> int: ...
+        def register(self, fileobj: FileDescriptorLike, events: _EventMask, data: Any = None) -> SelectorKey: ...
+        def unregister(self, fileobj: FileDescriptorLike) -> SelectorKey: ...
+        def select(self, timeout: float | None = None) -> list[tuple[SelectorKey, _EventMask]]: ...
+        def get_map(self) -> Mapping[FileDescriptorLike, SelectorKey]: ...
 
 # Not a real class at runtime, it is just a conditional alias to other real selectors.
 # The runtime logic is more fine-grained than a `sys.platform` check;

stdlib/subprocess.pyi

@@ -2600,6 +2600,7 @@ if sys.platform == "win32":
         hStdError: Any | None
         wShowWindow: int
         lpAttributeList: Mapping[str, Any]
+        def copy(self) -> STARTUPINFO: ...
     from _winapi import (
         ABOVE_NORMAL_PRIORITY_CLASS as ABOVE_NORMAL_PRIORITY_CLASS,
         BELOW_NORMAL_PRIORITY_CLASS as BELOW_NORMAL_PRIORITY_CLASS,