Using MLIR's dialect from xDSL

[webmiche]

Currently, we have a version of the MLIR internal dialects ('arith', 'scf', ...) in the xDSL repository. These dialects are based on one specific commit of the MLIR repo and thus expensive to maintain and subject to change all the time. Can we circumvent this?

As we seem to be able to produce dialects from MLIR automatically (through the use of the IRDL dialect), we could not have dialects in the repo but rather generate them on the fly. A user (hopefully) just has to give the files with the MLIR dialects and we generate all of them from it and make them usable like the ones in the repo atm.

What do you tink @math-fehr? Is this even possible?