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

[Bruno De Fraine via llvm-commits]

brunodf-snps wrote:

> I have landed [358e765](https://github.com/llvm/llvm-project/commit/358e7656807f7a459baa0ad6002dd246fbad88e3), [c030778](https://github.com/llvm/llvm-project/commit/c0307789796150699b550a314be236ea0b1be9ed) and [3c9236c](https://github.com/llvm/llvm-project/commit/3c9236c0bf57a3a7689fc64c57c1325ea466b1c0). Note that I slightly modified the second commit to drop the extra wrapper method.

Thanks! I have rebased again to make the precommitted changes disappear from this PR.

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