Multidimensional SplittedRanges are not possible

[wouterwln]

For example:

@constraints begin
    q(x) = q(x[begin, begin])..q(x[end, end])
end

is not possible yet (there are some broken tests that do test this behaviour but nothing functional as of yet)

[wouterwln]

Possible if you fill the indices yourself, impossible to resolve the indices (as it is ambiguous)