fix _forever calls to wait_forever

Author: deadlovelll

Lib/test/test_asyncio/test_free_threading.py

@@ -178,9 +178,9 @@ def eager_factory(loop, coro, **kwargs):
 
         async def setup():
             loop.set_task_factory(eager_factory)
-            eager = loop.create_task(_forever(), name="EAGER")
+            eager = loop.create_task(wait_forever(), name="EAGER")
             loop.set_task_factory(None)
-            normal = loop.create_task(_forever(), name="NORMAL")
+            normal = loop.create_task(wait_forever(), name="NORMAL")
             return eager, normal
 
         async def teardown():