[llvm] [DebugInfo] Merge partially matching chains of textual inclusions (PR #125780)

[Vladislav Dzhidzhoev via llvm-commits]

dzhidzhoev wrote:

> With that said, as far as I understand what you're describing, a simpler approach is still possible. Even if we use the common include location as the merged location, that is still only a single location - the inlined-chain logic you've adapted here is necessary to produce a list of locations for each inline frame. In this case, the only thing you'd need AFAICT is to modify the `GetNearestCommonScope` code in `getMergedLocation` to track inclusions in addition to scopes, and use the nearest common inclusion if one exists.

I figured it out, and I agree that keeping the "right" chain of parent scopes isn't necessary for output DILocations.
https://github.com/llvm/llvm-project/pull/132286 is another solution for the problem.

https://github.com/llvm/llvm-project/pull/125780