[llvm] [DebugInfo] Add an specification_of attribute to LLVM DebugInfo (PR #115362)

[Augusto Noronha via llvm-commits]

augusto2112 wrote:

> Could you add a more complete description/examples of the Swift situation this is used for currently?

Do you mean in the commit message?

https://github.com/llvm/llvm-project/pull/115362