Arrows could suffer from CLJ-1121

[AlexKnauth]

See http://dev.clojure.org/jira/browse/CLJ-1121
It gives this example:
After

(macroexpand-1 (macroexpand-1 '(-> a b c)))

=> (c (-> a b))

c is now in control if it is a macro, and is now seeing the argument (-> a b) rather than (b a) as would be the case if we had written (c (b a)) originally.
CLJ-1121 says it's fixed now, but it looks like maybe -<> and -<>> (and maybe the other ones) could suffer from the same problem.
I haven't actually tried it because I'm not actually a clojure user (I use racket).

[rplevy]

Thanks for bringing my attention to this. Personally, I'm not too worried about it as this is a theoretical edge case that I don't see as any having any practical importance, but if someone thinks otherwise and wants to submit a pull request, there's nothing wrong with that.