Hi, It looks like in 5cf9dbba8d350b4c0df179c7d983d5933c7d2119 the `sum` method taking a single iterator argument was removed: https://github.com/JuliaLang/julia/commit/5cf9dbba8d350b4c0df179c7d983d5933c7d2119#diff-4808ec683e5c7595ff2200ebc618aba3L72. Since the commit message says "No changes", I'm guessing this was by mistake?
Thanks, Joseph
