[libcxxabi] [libunwind] [WebAssembly] __USING_WASM_EXCEPTIONS__ -> __WASM_EXCEPTIONS__ (PR #92840)

[Sam Clegg via cfe-commits]

sbc100 wrote:

> It is hard to fix the clang-format errors because the modified files generally don't conform to the clang-format style anyway, so clang-format my change currently affects hundreds of unrelated lines.
> 
> ```
> aheejin at aheejin:~/llvm-project/libunwind$ git clang-format main
> changed files:
>     libcxxabi/include/cxxabi.h
>     libcxxabi/src/cxa_exception.cpp
>     libcxxabi/src/cxa_personality.cpp
> 
> aheejin at aheejin:~/llvm-project/libunwind$ git diff --stat
>  libcxxabi/include/cxxabi.h        |  13 +-
>  libcxxabi/src/cxa_exception.cpp   |   2 +-
>  libcxxabi/src/cxa_personality.cpp | 256 ++++++++++++++++++----------------------
>  3 files changed, 123 insertions(+), 148 deletions(-)
> ```

I think in these cases is fine to ignore the warnings to fit in with existing style.  

https://github.com/llvm/llvm-project/pull/92840