adjust the gh issue ref

Author: msullivan

Lib/asyncio/graph.py

@@ -71,7 +71,7 @@ def _build_graph_for_future(
                 st.append(FrameCallGraphEntry(coro.gi_frame))
             coro = coro.gi_yieldfrom
         elif hasattr(coro, 'aga_gen'):
-            # gh-156980: An asend()/athrow() awaitable: step over it to its generator
+            # gh-160837: An asend()/athrow() awaitable: step over it to its generator
             coro = coro.aga_gen
         else:
             break

Lib/test/test_asyncgen.py

@@ -400,7 +400,7 @@ async def gen():
             an.send(None)
 
     def test_async_gen_asend_athrow_aga_gen(self):
-        # gh-156980: asend()/athrow() awaitables expose the generator they drive
+        # gh-160837: asend()/athrow() awaitables expose the generator they drive
         async def gen():
             yield 1
 

Lib/test/test_asyncio/test_graph.py

@@ -431,7 +431,7 @@ async def probe(t):
         ])
 
     async def test_stack_async_gen_asend(self):
-        # gh-156980: an async_generator_asend must not truncate the stack
+        # gh-160837: an async_generator_asend must not truncate the stack
         fut = asyncio.Future()
         stack_for_consumer = None
 
@@ -465,7 +465,7 @@ async def main():
         ])
 
     async def test_stack_async_gen_aclose(self):
-        # gh-156980: an async_generator_athrow must not truncate the stack
+        # gh-160837: an async_generator_athrow must not truncate the stack
         fut = asyncio.Future()
         stack_for_consumer = None