[llvm] [RemoveDIs][DebugInfo] Correctly visit DPValues in StackInfoBuilder::visit (PR #81247)

[Florian Mayer via llvm-commits]

fmayer wrote:

LGTM, also would like a test.

> More importantly, some of the paths for visiting other instructions contain early returns, which will result in the DPValues not being visited at all.

Okay for now, but we should restructure the function to not make this happen by design, not by ordering. I can do that when I get some time.

https://github.com/llvm/llvm-project/pull/81247