Don't generate spurious line number in try-except-finally. (#23760)

Lib/test/test_sys_settrace.py

@@ -629,6 +629,23 @@ class TraceTestCase(unittest.TestCase):
              (3, 'line'),
              (3, 'return')])
 
+    def test_try_except_no_exception(self):
+
+        def func():
+            try:
+                2
+            except:
+                4
+            finally:
+                6
+
+        self.run_and_compare(func,
+            [(0, 'call'),
+             (1, 'line'),
+             (2, 'line'),
+             (6, 'line'),
+             (6, 'return')])
+
 
 class SkipLineEventsTraceTestCase(TraceTestCase):
     """Repeat the trace tests, but with per-line events skipped"""