* lower-frontend -> convert-onnx-to-krnl * lower-all-llvm -> convert-krnl-to-llvm * lower-krnl -> convert-krnl-to-affine * Name fix.
* Bug fix, ensure krnl.iterate can lower in the degenerate case. * Fix parser issue with degenerate iterate op. * Add a test case. * Remove dead code. Co-authored-by: Gheorghe-Teodor Bercea <gt.bercea@gmail.com>