Ruby: add a test case for instantiating ActionDispatch::Request directly

Author: alexrford

ruby/ql/test/library-tests/frameworks/action_dispatch/ActionDispatch.expected

@@ -36,8 +36,8 @@ actionDispatchRoutes
 actionDispatchControllerMethods
 | app/config/routes.rb:2:3:8:5 | call to resources | app/controllers/posts_controller.rb:2:3:3:5 | index |
 | app/config/routes.rb:2:3:8:5 | call to resources | app/controllers/posts_controller.rb:5:3:6:5 | show |
-| app/config/routes.rb:3:5:6:7 | call to resources | app/controllers/comments_controller.rb:2:3:36:5 | index |
-| app/config/routes.rb:3:5:6:7 | call to resources | app/controllers/comments_controller.rb:38:3:39:5 | show |
+| app/config/routes.rb:3:5:6:7 | call to resources | app/controllers/comments_controller.rb:2:3:39:5 | index |
+| app/config/routes.rb:3:5:6:7 | call to resources | app/controllers/comments_controller.rb:41:3:42:5 | show |
 | app/config/routes.rb:7:5:7:37 | call to post | app/controllers/posts_controller.rb:8:3:9:5 | upvote |
 | app/config/routes.rb:27:3:27:48 | call to match | app/controllers/photos_controller.rb:2:3:3:5 | show |
 | app/config/routes.rb:28:3:28:50 | call to match | app/controllers/photos_controller.rb:2:3:3:5 | show |
@@ -74,6 +74,7 @@ requestInputAccesses
 | app/controllers/comments_controller.rb:7:5:7:28 | call to query_parameters |
 | app/controllers/comments_controller.rb:8:5:8:30 | call to request_parameters |
 | app/controllers/comments_controller.rb:9:5:9:31 | call to filtered_parameters |
+| app/controllers/comments_controller.rb:38:5:38:14 | call to params |
 | app/controllers/foo/bars_controller.rb:10:27:10:33 | call to cookies |
 | app/controllers/foo/bars_controller.rb:13:21:13:26 | call to params |
 | app/controllers/foo/bars_controller.rb:14:10:14:15 | call to params |

ruby/ql/test/library-tests/frameworks/action_dispatch/app/controllers/comments_controller.rb

@@ -33,6 +33,9 @@ def index
     response.last_modified = Date.yesterday
     response.weak_etag = "value"
     response.strong_etag = "value"
+
+    req = ActionDispatch::Request.new(request.env)
+    req.params
   end
 
   def show