[clang] [llvm] [DebugInfo] Place local ODR-uniqued types in decl DISubprograms (PR #119001)

[David Blaikie via llvm-commits]

dwblaikie wrote:

No idea if this sufficiently overlaps with, or is orthogonal to the following, but:

Currently we don't scope function-local types into the appropriate scope inside a function. It seems like associating types with their declaration may make this harder to address - how would we handle that? (like, we'd have to create scopes for function declarations? somehow associate those with the scopes in concrete definitions of a function?)

Maybe it's too big/complex a problem to try to think about, and incremental development should overrule here - but may be worth thinking about? 

https://github.com/llvm/llvm-project/pull/119001