[clang] [Clang] [ARM] Ensure FPU Features are collected when using the Clang Assembler (PR #134366)

[David Spickett via cfe-commits]

https://github.com/DavidSpickett commented:

I see that this would be breaking for code unintentionally relying on the features being omitted, but it makes sense to fix it nevertheless. I would have expected us to add the features all along.

What does gcc/binutils do in this scenario? I don't think it would change the decision here, but curious anyway.

https://github.com/llvm/llvm-project/pull/134366