[llvm] [mlir] [mlir python] Add nanobind support for standalone dialects. (PR #117922)

[Nikita Popov via llvm-commits]

nikic wrote:

Okay, if the python bindings are going to use this internally (rather than just make it an option for consumers), then making it required seems unavoidable.

The reason I asked is that nanobind is currently not packaged in Fedora, which probably means that MLIR is the first significant user of this library. (Work to package it is underway now...)

https://github.com/llvm/llvm-project/pull/117922