[llvm] [Support] Add WrappedError class (PR #191706)

[Fangrui Song via llvm-commits]

MaskRay wrote:

I feel this is a one-consumer hack dressed up as a general primitive... I think we should close this one, focus on 191708, and if we find a generalizable pattern, reopen this PR.

https://github.com/llvm/llvm-project/pull/191706