a5757c5b65
This change cleans up call sites. Next step is to mark the member functions deprecated. See https://mlir.llvm.org/deprecation and https://discourse.llvm.org/t/preferred-casting-style-going-forward.
Transform Dialect Tutorial is available at https://mlir.llvm.org/docs/Tutorials/transform.
Test files are located under mlir/test/Examples/Transform.