Python: Add test highlight problem is import is used :O

Author: RasmusWL

python/ql/test/experimental/library-tests/FindSubclass/Find.expected

@@ -6,9 +6,9 @@
 | flask.View~Subclass | find_subclass_test | Member[B] |
 | flask.View~Subclass | find_subclass_test | Member[ViewAliasInExcept] |
 | flask.View~Subclass | find_subclass_test | Member[ViewAliasInTry] |
-| flask.View~Subclass | find_subclass_test | Member[ViewAlias] |
+| flask.View~Subclass | find_subclass_test | Member[ViewAlias_no_use] |
 | flask.View~Subclass | find_subclass_test | Member[View] |
 | flask.View~Subclass | find_subclass_test | Member[clash2] |
 | flask.View~Subclass | find_subclass_test | Member[clash3] |
 | flask.View~Subclass | find_subclass_test | Member[clash] |
-| flask.View~Subclass | find_subclass_test | Member[complete_module_alias] |
+| flask.View~Subclass | find_subclass_test | Member[complete_module_alias_no_use] |

python/ql/test/experimental/library-tests/FindSubclass/find_subclass_test.py

@@ -11,6 +11,10 @@ class C(flask.views.MethodView):
     pass
 
 ViewAlias = View
+print(ViewAlias)
+
+ViewAlias_no_use = View
+
 
 try:
     from flask.views import View as ViewAliasInTry
@@ -40,6 +44,10 @@ class C(flask.views.MethodView):
 
 # NOTE: this is not valid code, since View is not a module... but it could be in some cases, like for xml.etree.ElementTree, which is actually not a class but a module 😕
 import flask.views.View as complete_module_alias
+print(complete_module_alias)
+
+import flask.views.View as complete_module_alias_no_use
+
 
 def wrapper():
     return View # $ MISSING