Py: Put in commented-out test and update expected

Author: calumgrant

python/ql/test/3/library-tests/PointsTo/typehints/Values.expected

@@ -19,3 +19,10 @@
 | test.py:10:6:10:18 | test.py:10 | ControlFlowNode for Subscript | import | file://:0:0:0:0 | _Optional()[builtin-class int] |
 | test.py:10:15:10:17 | test.py:10 | ControlFlowNode for int | import | file://:0:0:0:0 | builtin-class int |
 | test.py:10:20:10:22 | test.py:10 | ControlFlowNode for int | import | file://:0:0:0:0 | builtin-class int |
+| test.py:12:1:12:12 | test.py:12 | ControlFlowNode for ClassExpr | import | test.py:12:1:12:12 | class baz |
+| test.py:14:7:14:10 | test.py:14 | ControlFlowNode for True | import | file://:0:0:0:0 | bool True |
+| test.py:15:11:15:13 | test.py:15 | ControlFlowNode for baz | import | file://:0:0:0:0 | class baz[class baz] |
+| test.py:15:11:15:13 | test.py:15 | ControlFlowNode for baz | import | test.py:12:1:12:12 | class baz |
+| test.py:15:11:15:18 | test.py:15 | ControlFlowNode for Subscript | import | file://:0:0:0:0 | class baz[class baz] |
+| test.py:15:15:15:17 | test.py:15 | ControlFlowNode for baz | import | file://:0:0:0:0 | class baz[class baz] |
+| test.py:15:15:15:17 | test.py:15 | ControlFlowNode for baz | import | test.py:12:1:12:12 | class baz |

python/ql/test/3/library-tests/PointsTo/typehints/test.py

@@ -8,3 +8,8 @@ def bar(s:set)->Set:
 
 t1 = Optional[Optional[int]]
 t2 = Optional[int][int]
+
+class baz():
+    pass
+while True:
+    baz = baz[baz]