[flang-commits] [flang] [flang] Fix ISO_C_BINDING type sizes for Windows (PR #172034)

[Jameson Nash via flang-commits]

vtjnash wrote:

Ping? Trying to upstream this bugfix from msys2 (https://github.com/msys2/MINGW-packages/pull/16579), but would be nice to get second eyes on it to make sure I'm not missing anything else about the ABI declarations!

https://github.com/llvm/llvm-project/pull/172034