One more comment; fix a typo

Author: ilevkivskyi

mypy/build.py

@@ -2197,7 +2197,7 @@ def reload_meta(self) -> None:
         """Force reload of cache meta.
 
         This is used by parallel checking workers to update shared information
-        that may ave changed after initial graph loading. Currently, this is only
+        that may have changed after initial graph loading. Currently, this is only
         the interface hash.
         """
         assert self.path is not None

test-data/unit/lib-stub/typing_extensions.pyi

@@ -1,3 +1,5 @@
+# Do not delete this import. Dependency structure of core modules for fixtures should match
+# the real dependency structure, otherwise things like add_typing_extension_aliases() will break.
 import collections
 import typing
 from typing import Any, Callable, Mapping, Iterable, Iterator, NoReturn as NoReturn, Dict, Tuple, Type, Union