[llvm] [mlir] More `LLVM_ENABLE_ABI_BREAKING_CHECKS` fixes after #110883 (PR #110918)

[Benoit Jacob via llvm-commits]

bjacob wrote:

Closing this, following the revert  https://github.com/llvm/llvm-project/pull/110923.  Feel free to fold this diff into the next attempt.

https://github.com/llvm/llvm-project/pull/110918