[clang] [CIR] Add abstract array delete operation with expansion during CXXABILowering (PR #185134)

[Erich Keane via cfe-commits]

https://github.com/erichkeane commented:

I think in general this is a bit of a nicer approach, but I still strongly dislike addition of AST into CIR.  Particularly in this case, where all we're looking for is a handful of attributes about the function that we could store.

The AST nodes make accepting IR from 'other' programs difficult/impossible, and IMO, we should avoid it if at all possible.

https://github.com/llvm/llvm-project/pull/185134