Address review on 3.15 types changes

Author: JelleZijlstra

stdlib/tarfile.pyi

@@ -132,8 +132,9 @@ class TarFile:
     errorlevel: Literal[0, 1, 2]
     offset: int  # undocumented
     extraction_filter: _FilterFunction | None
-    if sys.version_info >= (3, 15):
+    if sys.version_info >= (3, 13):
         stream: bool
+    if sys.version_info >= (3, 15):
         def __init__(
             self,
             name: StrOrBytesPath | None = None,
@@ -153,7 +154,6 @@ class TarFile:
             mtime: float | None = None,
         ) -> None: ...
     elif sys.version_info >= (3, 13):
-        stream: bool
         def __init__(
             self,
             name: StrOrBytesPath | None = None,

stdlib/types.pyi

@@ -153,9 +153,7 @@ class CodeType:
     def co_name(self) -> str: ...
     @property
     def co_firstlineno(self) -> int: ...
-    if sys.version_info >= (3, 15):
-        pass
-    else:
+    if sys.version_info < (3, 15):
         @property
         @deprecated("Deprecated since Python 3.10; will be removed in Python 3.15. Use `CodeType.co_lines()` instead.")
         def co_lnotab(self) -> bytes: ...