[llvm] [DebugInfo][RemoveDIs] Support DPValues in HWAsan (PR #78731)

[Jeremy Morse via llvm-commits]

jmorse wrote:

Thanks for the reviews,

> @jmorse I'm happy for you to land this patch first, and then I will incorporate DPVAssign updates into mine?

SGTM, landing with formatting fixes,

https://github.com/llvm/llvm-project/pull/78731