[llvm] [DebugInfo][RemoveDIs] Prevent duplicate DPValues from being returned by findDbgIntrinsics (PR #82764)

[Orlando Cazalet-Hyams via llvm-commits]

https://github.com/OCHyams approved this pull request.

LGTM

> FIXME: Should we be updating the addresses on assigns here as well?

Agreed (but should be fixed separately)

https://github.com/llvm/llvm-project/pull/82764