Use TypeAlias where possible for type aliases (#7630)

stdlib/trace.pyi

@@ -2,14 +2,14 @@ import sys
 import types
 from _typeshed import StrPath
 from typing import Any, Callable, Mapping, Sequence, TypeVar
-from typing_extensions import ParamSpec
+from typing_extensions import ParamSpec, TypeAlias
 
 __all__ = ["Trace", "CoverageResults"]
 
 _T = TypeVar("_T")
 _P = ParamSpec("_P")
-_localtrace = Callable[[types.FrameType, str, Any], Callable[..., Any]]
-_fileModuleFunction = tuple[str, str | None, str]
+_localtrace: TypeAlias = Callable[[types.FrameType, str, Any], Callable[..., Any]]
+_fileModuleFunction: TypeAlias = tuple[str, str | None, str]
 
 class CoverageResults:
     def __init__(