[clang] [SemaCXX] Make __builtin_addressof more like std::addressof (PR #78035)

[Erich Keane via cfe-commits]

https://github.com/erichkeane commented:

Need a release note as well.  I don't think I'm great for reviewing this, so I'll leave it to aaron to decide on the direction.

https://github.com/llvm/llvm-project/pull/78035