Fixed type pretty-printing in Levy#34
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mbneedham wants to merge 1 commit intoandrejbauer:masterfrom
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It looks like the pretty-printing code in Levy omits the parentheses for types like U (A -> B) and prints superfluous ones for types like U A -> B. I don't have a working OCaml environment at the moment to confirm and test, but I believe this is a fix.