[compiler-rt] [compiler-rt] [fuzzer] Skip trying to set the thread name on MinGW (PR #115167)

[Martin Storsjö via llvm-commits]

mstorsjo wrote:

FYI, based on advice from @ldionne, I did manage to implement a way to properly select automatically between the two kinds of thread handles - see https://github.com/mstorsjo/llvm-project/commit/compiler-rt-thread-name-select.

I don't think it's worth merging this for now, though, as this code isn't really used on mingw targets right now anyway, but I'm putting it out there for future reference.

https://github.com/llvm/llvm-project/pull/115167