Use PEP 585 syntax in Python 2, protobuf & _ast stubs, where possible (#6949)

stdlib/@python2/pdb.pyi

@@ -1,7 +1,7 @@
 from bdb import Bdb
 from cmd import Cmd
 from types import FrameType, TracebackType
-from typing import IO, Any, Callable, ClassVar, Dict, Iterable, List, Mapping, Tuple, TypeVar
+from typing import IO, Any, Callable, ClassVar, Iterable, Mapping, TypeVar
 
 _T = TypeVar("_T")
 
@@ -9,9 +9,9 @@ line_prefix: str  # undocumented
 
 class Restart(Exception): ...
 
-def run(statement: str, globals: Dict[str, Any] | None = ..., locals: Mapping[str, Any] | None = ...) -> None: ...
-def runeval(expression: str, globals: Dict[str, Any] | None = ..., locals: Mapping[str, Any] | None = ...) -> Any: ...
-def runctx(statement: str, globals: Dict[str, Any], locals: Mapping[str, Any]) -> None: ...
+def run(statement: str, globals: dict[str, Any] | None = ..., locals: Mapping[str, Any] | None = ...) -> None: ...
+def runeval(expression: str, globals: dict[str, Any] | None = ..., locals: Mapping[str, Any] | None = ...) -> Any: ...
+def runctx(statement: str, globals: dict[str, Any], locals: Mapping[str, Any]) -> None: ...
 def runcall(func: Callable[..., _T], *args: Any, **kwds: Any) -> _T | None: ...
 def set_trace() -> None: ...
 def post_mortem(t: TracebackType | None = ...) -> None: ...
@@ -20,19 +20,19 @@ def pm() -> None: ...
 class Pdb(Bdb, Cmd):
     # Everything here is undocumented, except for __init__
 
-    commands_resuming: ClassVar[List[str]]
+    commands_resuming: ClassVar[list[str]]
 
-    aliases: Dict[str, str]
+    aliases: dict[str, str]
     mainpyfile: str
     _wait_for_mainpyfile: bool
-    rcLines: List[str]
-    commands: Dict[int, List[str]]
-    commands_doprompt: Dict[int, bool]
-    commands_silent: Dict[int, bool]
+    rcLines: list[str]
+    commands: dict[int, list[str]]
+    commands_doprompt: dict[int, bool]
+    commands_silent: dict[int, bool]
     commands_defining: bool
     commands_bnum: int | None
     lineno: int | None
-    stack: List[Tuple[FrameType, int]]
+    stack: list[tuple[FrameType, int]]
     curindex: int
     curframe: FrameType | None
     curframe_locals: Mapping[str, Any]
@@ -47,11 +47,11 @@ class Pdb(Bdb, Cmd):
     def displayhook(self, obj: object) -> None: ...
     def handle_command_def(self, line: str) -> bool: ...
     def defaultFile(self) -> str: ...
-    def lineinfo(self, identifier: str) -> Tuple[None, None, None] | Tuple[str, str, int]: ...
+    def lineinfo(self, identifier: str) -> tuple[None, None, None] | tuple[str, str, int]: ...
     def checkline(self, filename: str, lineno: int) -> int: ...
     def _getval(self, arg: str) -> object: ...
     def print_stack_trace(self) -> None: ...
-    def print_stack_entry(self, frame_lineno: Tuple[FrameType, int], prompt_prefix: str = ...) -> None: ...
+    def print_stack_entry(self, frame_lineno: tuple[FrameType, int], prompt_prefix: str = ...) -> None: ...
     def lookupmodule(self, filename: str) -> str | None: ...
     def _runscript(self, filename: str) -> None: ...
     def do_commands(self, arg: str) -> bool | None: ...
@@ -157,7 +157,7 @@ class Pdb(Bdb, Cmd):
 
 # undocumented
 
-def find_function(funcname: str, filename: str) -> Tuple[str, str, int] | None: ...
+def find_function(funcname: str, filename: str) -> tuple[str, str, int] | None: ...
 def main() -> None: ...
 def help() -> None: ...