xlf_io: patch around * re-export limitation in stubs

Summary:
Lifeguard only registers *named* re-exports for call resolution.

Explicitly re-export the missing objects making `asyncio.Lock`/`asyncio.Event` show up as unknown objects.

Reviewed By: alexmalyshev

Differential Revision: D108178080

fbshipit-source-id: 450fe727b37730fd9e050a4440bc4929b5e20bb8

Author: brittanyrey

resources/stubs/stdlib/asyncio/__init__.pyi

@@ -12,6 +12,17 @@ from .events import *
 from .exceptions import *
 from .futures import *
 from .locks import *
+
+# TODO(T275372839): have collect_re_exports follow star imports for class names
+# so this per-package stub workaround isn't needed. The `from .locks import *`
+# above doesn't register class names for call resolution.
+from .locks import (
+    BoundedSemaphore as BoundedSemaphore,
+    Condition as Condition,
+    Event as Event,
+    Lock as Lock,
+    Semaphore as Semaphore,
+)
 from .protocols import *
 from .queues import *
 from .runners import *