llvm-project

1ee18959 - Reland "[bazel][mlir][python] Port #155741: stub auto-generation" (#159940)

Reland "[bazel][mlir][python] Port #155741: stub auto-generation" (#159940) Relands https://github.com/llvm/llvm-project/pull/157173 (reverts llvm/llvm-project#157995). The stubgen was relanded here: https://github.com/llvm/llvm-project/pull/157930