Python: Update debug query to changed API

The change is commented out by default
which is why no compilation tests failed
when the API changed.

Author: yoff

python/ql/test/experimental/meta/debug/dataflowTestPaths.ql

@@ -22,7 +22,7 @@ module Flows = DataFlow::Global<Config>;
 import Flows::PathGraph
 
 // int explorationLimit() { result = 5 }
-// module FlowsPartial = Flows::FlowExploration<explorationLimit/0>;
+// module FlowsPartial = Flows::FlowExplorationFwd<explorationLimit/0>;
 // import FlowsPartial::PartialPathGraph
 from Flows::PathNode source, Flows::PathNode sink
 where Flows::flowPath(source, sink)