`import _is_index_type` fails for the latest llvm>=22.1.0

[learning-chip]

This line import _is_index_type:

mlir-python-extras/mlir/extras/dialects/ext/_shaped_value.py

Line 6 in 46a55a3

from ....dialects.linalg.opdsl.lang.emitter import _is_index_type

Leads to error:

ImportError: cannot import name '_is_index_type' from 'mlir.dialects.linalg.opdsl.lang.emitter' (/opt/python/cp312-cp312/lib/python3.12/site-packages/mlir/dialects/linalg/opdsl/lang/emitter.py). Did you mean: '_is_bool_type'?

Because _is_index_type is removed in llvmorg-22.1.0-rc1.

The last working tag is llvmorg-21.1.8, better mention this llvm version dependency (<=21.1.8) in README

[makslevental]

Basically this repo isn't maintained anymore because I'm not allowed to contribute to it by company - all work has moved over to https://github.com/llvm/eudsl/tree/main/projects/eudsl-python-extras (which was already updated to work with that change).