Add @final to slice/memoryview/range (#6289)

None of these classes can be subclassed at runtime.

Author: AlexWaygood

stdlib/builtins.pyi

@@ -19,7 +19,6 @@ from _typeshed import (
     SupportsRDivMod,
     SupportsWrite,
 )
-from ast import AST, mod
 from io import BufferedRandom, BufferedReader, BufferedWriter, FileIO, TextIOWrapper
 from types import CodeType, MappingProxyType, TracebackType
 from typing import (
@@ -62,6 +61,8 @@ from typing import (
 )
 from typing_extensions import Literal, SupportsIndex, TypeGuard, final
 
+from _ast import AST
+
 if sys.version_info >= (3, 9):
     from types import GenericAlias
 
@@ -644,6 +645,7 @@ class bytearray(MutableSequence[int], ByteString):
     def __gt__(self, __x: bytes) -> bool: ...
     def __ge__(self, __x: bytes) -> bool: ...
 
+@final
 class memoryview(Sized, Sequence[int]):
     format: str
     itemsize: int
@@ -717,6 +719,7 @@ class bool(int):
     def __rxor__(self, __x: int) -> int: ...
     def __getnewargs__(self) -> tuple[int]: ...
 
+@final
 class slice(object):
     start: Any
     step: Any
@@ -937,6 +940,7 @@ class enumerate(Iterator[Tuple[int, _T]], Generic[_T]):
     if sys.version_info >= (3, 9):
         def __class_getitem__(cls, __item: Any) -> GenericAlias: ...
 
+@final
 class range(Sequence[int]):
     start: int
     stop: int
@@ -1010,7 +1014,7 @@ if sys.version_info >= (3, 10):
 
 if sys.version_info >= (3, 8):
     def compile(
-        source: str | bytes | mod | AST,
+        source: str | bytes | AST,
         filename: str | bytes | _PathLike[Any],
         mode: str,
         flags: int = ...,
@@ -1022,7 +1026,7 @@ if sys.version_info >= (3, 8):
 
 else:
     def compile(
-        source: str | bytes | mod | AST,
+        source: str | bytes | AST,
         filename: str | bytes | _PathLike[Any],
         mode: str,
         flags: int = ...,