[compiler-rt] [asan] Fix `unknown-crash` being reported for multi-byte errors, and incorrect memory access addresses being reported (PR #144480)

[via llvm-commits]

wxwern wrote:

Apologies for the delay. I wasn't able to find a pathway that invoked the original "is a wild pointer" message so far - simple wild pointers dereferences would trigger a short description regarding the `SEGV` and nothing else.

I'll report back when I have the time to figure this out (I've been busy and migrated to a different system, so it'll take a while to get the build system up). If anyone wants to tackle this, do go ahead. 

https://github.com/llvm/llvm-project/pull/144480