[llvm] [DebugInfo] getMergedLocation: match scopes based on their location (PR #132286)

[David Blaikie via llvm-commits]

dwblaikie wrote:

the textual description of this issue I'm finding a bit hard to follow - could you sketch out a little example, perhaps - some approximation of the source situation, the two location chains in question, the location chain that's produced currently when they're merged, and the location chain that'll be produced after this patch?

https://github.com/llvm/llvm-project/pull/132286