[Mlir-commits] [mlir] Reland [mlir][gpu] Use `SmallString`, `FailureOr` and `StringRef` in `module-to-binary` infra (NFC) (PR #172390)

[Jakub Kuderski]

kuhar wrote:

Yes, I meant actually teaching it to work on stringrefs. As as follow up, of course.

https://github.com/llvm/llvm-project/pull/172390