Rename Operation::getAs to Operation::dyn_cast

Also rename Operation::is to Operation::isa
Introduce Operation::cast

All of these are for consistency with global dyn_cast/cast/isa operators.

PiperOrigin-RevId: 217878786
14 files changed
tree: c90771bdfd325eb061261be0c696efededd2304f
  1. include/
  2. lib/
  3. test/
  4. tools/
  5. utils/
  6. .clang-format
  7. LICENSE.TXT