[llvm-branch-commits] [mlir] release/18.x: [mlir][NFC] Apply rule of five to *Pass classes (#80998) (PR #83971)

[Tom Stellard via llvm-branch-commits]

tstellar wrote:

I think it's an ABI change (but I could be wrong), because some of the implicit constructors are being deleted.  What happens if a user of the library was using these deleted constructors?

https://github.com/llvm/llvm-project/pull/83971