[llvm-branch-commits] [mlir] release/23.x: [mlir] fix builders by moving var into assert (#209494) (PR #212475)

[Tobias Hieta via llvm-branch-commits]

tru wrote:

@boomanaiden154 @cmtice @dschuff Following up — any chance one of you can take a look at this?

https://github.com/llvm/llvm-project/pull/212475