In iterators.jl:1092 and 1095 Stateful{T,VS} is reversed to {VS,T}

[denizyuret]

julia/base/iterators.jl

Line 1092 in 34f7a4a

IteratorSize(::Type{Stateful{VS,T}} where VS) where {T} =

e.g. Stateful(cycle(itr)) claims it has length.

[JeffBezanson]

Wow, thank you. Good catch. Could you prepare a PR?