- This change splits the path formulas into probabilistic path formulas like Next or Until and reward path formulas like InstantaneousReward or SteadyStateReward.
|- That way it is assured at compile time that no reward path formula can ever be subformula of any probabilistic bound operator and vise versa.
Next up: Adopt changes in the Csl formula tree to the Csl parser.
Former-commit-id: d74c88bbf8