[llvm] [AST] Don't merge memory locations in AliasSetTracker (PR #65731)

[Johannes Doerfert via llvm-commits]

https://github.com/jdoerfert commented:

I left comments. Generally, I think this is the right way to go. We had the custom rolled stuff that was expanded from MemLoc, and used to create MemLoc all the time anyway. 

Do we have compile time data? Maybe like this and w/ a SetVector instead of a plain vector?

https://github.com/llvm/llvm-project/pull/65731