bpo-41670: Remove outdated predict macro invocation. (GH-22026)

Remove PREDICTion of POP_BLOCK from FOR_ITER.

Lib/test/test_sys_settrace.py

@@ -602,6 +602,23 @@ class TraceTestCase(unittest.TestCase):
         self.compare_events(doit_async.__code__.co_firstlineno,
                             tracer.events, events)
 
+    def test_loop_in_try_except(self):
+        # https://bugs.python.org/issue41670
+
+        def func():
+            try:
+                for i in []: pass
+                return 1
+            except:
+                return 2
+
+        self.run_and_compare(func,
+            [(0, 'call'),
+             (1, 'line'),
+             (2, 'line'),
+             (3, 'line'),
+             (3, 'return')])
+
 
 class SkipLineEventsTraceTestCase(TraceTestCase):
     """Repeat the trace tests, but with per-line events skipped"""