[Mlir-commits] [mlir] [mlir][Analysis] Remove return value from `getBackwardSlice` (PR #163749)

[Mehdi Amini]

joker-eph wrote:

We have to think about the conceptual aspect of this API: do we intend for this to be a "failable" operation? This is independent of the current implementation and more of a conceptual design question.
Making it failable conceptually isn't free for the user: they need to be able to propagate the error and bail out potentially, so not great to do unnecessarily and to be considered with care.

https://github.com/llvm/llvm-project/pull/163749