[llvm] [llvm-exegesis] Add explicit error message with segfault address (PR #72774)

[Aiden Grossman via llvm-commits]

boomanaiden154 wrote:

@ondrasej 

This is an adaptation of https://reviews.llvm.org/D158052, but without any propagation of the error message. The original intended use case of that patch was analyzing the segfault address in a downstream consumer linking in some of the `llvm-exegesis` libraries, but that isn't a direction we're pursuing currently.

https://github.com/llvm/llvm-project/pull/72774