[llvm] [MLIR] [Python] Added plumbing to run stubgen on the mlir._mlir package (PR #179211)

[Jacques Pienaar via llvm-commits]

================
@@ -1419,6 +1420,30 @@ cc_binary(
     ],
 )
 
+##---------------------------------------------------------------------------##
----------------
jpienaar wrote:

Why here vs in utils/bazel/llvm-project-overlay/mlir/python/BUILD.bazel ?

https://github.com/llvm/llvm-project/pull/179211