bpo-43933: Force RETURN_VALUE bytecodes to have line numbers (GH-26054)

Lib/test/test_sys_settrace.py

@@ -976,6 +976,26 @@ class TraceTestCase(unittest.TestCase):
              (3, 'return'),
              (1, 'return')])
 
+    def test_try_in_try(self):
+        def func():
+            try:
+                try:
+                    pass
+                except Exception as ex:
+                    pass
+            except Exception:
+                pass
+
+        # This doesn't conform to PEP 626
+        self.run_and_compare(func,
+            [(0, 'call'),
+             (1, 'line'),
+             (2, 'line'),
+             (3, 'line'),
+             (5, 'line'),
+             (5, 'return')])
+
+
 class SkipLineEventsTraceTestCase(TraceTestCase):
     """Repeat the trace tests, but with per-line events skipped"""
 
@@ -1647,6 +1667,7 @@ class JumpTestCase(unittest.TestCase):
         output.append(1)
         async for i in asynciter([1, 2]):
             output.append(3)
+        pass
 
     @jump_test(3, 2, [2, 2], (ValueError, 'into'))
     def test_no_jump_backwards_into_for_block(output):