[llvm] Extend GCC workaround to GCC < 8.4 for llvm::iterator_range ctor (PR #82643)

[Thomas Preud'homme via llvm-commits]

RoboTux wrote:

> Have you tested on GCC 8.3.0? Even after applying this patch, I'm still getting compilation errors.

I had tested a build of my project that uses MLIR with GCC 8.3 (built from the corresponding git release branch) and it built fine (it wasn't without this patch). I've just tried building just MLIR and I'm seeing a similar error.

https://github.com/llvm/llvm-project/pull/82643