[Mlir-commits] [mlir] [MLIR][Python] Add the ability to signal pass failures in python-defined passes (PR #157613)

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PragmaTwice wrote:

Hi @makslevental, I have finished the changes guided by [the gist](https://gist.github.com/makslevental/ca6170ea884ef2b8d04601be3b6c8cac).

A minor difference: I did some check and it seems that we don't need to cast the handle to `nb::callable` before calling it, so `nb::handle` should be enough here to use `operator()`.

https://github.com/llvm/llvm-project/pull/157613