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

[Bruno De Fraine via llvm-commits]

brunodf-snps wrote:

Thanks @jdoerfert for your comments. There is compile-time data here: https://llvm-compile-time-tracker.com/compare.php?from=fab25949688d7b038ee047d4e8b44a23803db3bd&to=aa7ccadde93f78148026103a03c282e23acbf0b3&stat=instructions:u

I will address your other comments.

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