[llvm] [RemoveDIs][NFC] Rename common interface functions for DPValues->DbgRecords (PR #84793)

[Christian Ulmann via llvm-commits]

Dinistro wrote:

Minor note: Is this really considered to be a non-functional change when it changes a public API and thus can break down-stream projects? 

https://github.com/llvm/llvm-project/pull/84793