[embind] Allow awaiting Promises in non-Promise coroutines & catching Promise C++ exceptions#26195

stevenwdv wants to merge 6 commits intoemscripten-core:mainemscripten-core/emscripten:mainfrom

stevenwdv:val-coro-fixesstevenwdv/emscripten:val-coro-fixesCopy head branch name to clipboard