[llvm] Add new llvm.dbg.declare_value intrinsic. (PR #168132)

[Adrian Prantl via llvm-commits]

adrian-prantl wrote:

> Done! I am not sure what to check for, so I just checked that there was a #dbg_declare_value still present. Please let me know if I should change something

No, that's all that's needed to ensure serialization and deserialization doesn't lose any information.

https://github.com/llvm/llvm-project/pull/168132