[llvm] [HWASan] Handle default attribute on personality function thunks. (PR #141917)

[Florian Mayer via llvm-commits]

fmayer wrote:

What is the aim of this change? IMO the way it was before more explicitly models what we want: now that BTI is determined on a per-function, not per-module basis, this is the information we should use.

https://github.com/llvm/llvm-project/pull/141917