In C23, `false` is now of type `bool`, not `int`. This turned a couple places where `false` was returned instead of `NULL` into errors.
The workaround in upb for Windows's broken NAN macro causes an error in Clang under C23, `cannot compile this static initializer yet`, I believe because `0.0 / 0.0` is not valid in constant-evaluation. This seems like it's probably a legitimate result of C23 standardizing constexpr, although it _could_ be a clang bug. In any case, refine the workaround a bit, to avoid this problem.
I've also reverted the kUpb_FltInfinity/kUpb_Infinity back to their former definitions, as INFINITY wasn't broken by the windows header, only NAN.
PiperOrigin-RevId: 683152452
Initialize minitable tracing field for MtDecoder
Add api for non C language runtimes to initialize dynamic mini table name.
PiperOrigin-RevId: 613664457
Protobuf Team Bot
Joshua Haberman
Eric Salo
Hong Shin