[clang] [llvm] [ARM] Emit an error when the hard-float ABI is enabled but can't be used. (PR #111334)

[Ralf Jung via llvm-commits]

RalfJung wrote:

> converting llvm errors to clang errors.

I assume you didn't also add those errors to all the other frontends, so every time you do this (assuming you actually remove the LLVM error at that point) you risk introducing bugs into other frontends (if they were relying on LLVM to reject some nonsensical situations). IMO this should be done with more consideration of non-clang frontends.

https://github.com/llvm/llvm-project/pull/111334