was still busted.  The reason is that for loops would generated
`icedgen` functions within in an iced function that have `__iced_k` as a
parameter.  That would **overwrite** the fact that `__iced_k` is listed
as a `var` in that scope, causing it not to be listed in the `var`
line at the beginning of an iced function, causing infinite headaches.
There should now be a fix and a good regtest for this....