stage2: elemPtr for slices

* Restructure elemPtr a bit
* New AIR instruction: slice_elem_ptr, which returns a pointer to an element of a slice
* Value: adapt elemPtr to work on slices
09c7d5aebcRobin Voetter committed on 10/21/2021, 2:24:18 PMparent84876fe
10 files changedLine totals unavailable