Add a failing test for a custom types module case

Any `types.*Type*` matches incorrectly as a `type(...)` comparison;
the regex `COMPARE_TYPE_REGEX` seems a bit too complicated
for what should be a simple comparison case.

Ref: https://github.com/PyCQA/pycodestyle/blob/main/pycodestyle.py#L147-L148

This reproduces the case in #830

Author: asfaltboy

testsuite/E72.py

@@ -80,3 +80,8 @@ def func_histype(a, b, c):
     pass
 except Exception:
     pass
+#: Okay
+from . import custom_types as types
+
+red = types.ColorTypeRED
+red is types.ColorType.RED

testsuite/custom_types.py

@@ -0,0 +1,7 @@
+import enum
+
+
+class ColorType(enum.Enum):
+    RED = 1
+    GREEN = 2
+    BLUE = 3