[llvm] [DebugInfo] Truncate implicit value constants to source type width (PR #206671)

[Mikael Holmen via llvm-commits]

mikaelholmen wrote:

This solves the problem we saw with https://github.com/llvm/llvm-project/pull/204353.
We've done the same change downstream and it has worked for us.

Maybe @JDevlieghere who approved the original PR can take a look?

https://github.com/llvm/llvm-project/pull/206671