Iterating over typemin(Int):typemax(Int) does nothing

[hayd]

julia> for i in typemin(Int):typemax(Int)
         i == typemin(Int) && (println(i); break)
       end

julia> for i in typemin(Int32):typemax(Int32)
         i == typemin(Int32) && (println(i); break)
       end
-2147483648

Presumably this is due to the conversion to Int.

If this is not fixable should typemin(Int):typemax(Int) be disallowed or warned about in the docs (perhaps it is already)?

[bicycle1885]

Maybe a dup of #11742.

[yuyichao]

Dup of #11742