rewriting coerce_tuple to be iterative
rewriting coerce_tuple to be iterative

akuhlens/schml,Gradual-Typing/Grift,akuhlens/schml,akuhlens/schml,akuhlens/schml,Gradual-Typing/Grift,Gradual-Typing/Grift,akuhlens/schml,Gradual-Typing/Grift,akuhlens/schml