[llvm] [mlir] [DebugInfo] Enforce DISubprogram type as required in LLParser (PR #196299)

[Jiang Ning via llvm-commits]

JiangNingHX wrote:

Thanks for the review, @jmorse! The pre-merge checks are green now.

I don't have commit access yet, so could you or another maintainer help land this when convenient?

https://github.com/llvm/llvm-project/pull/196299