[clang] [clang][Sema] Avoid assert when diagnosing address-space qualified new/delete (PR #178424)

[Yanzuo Liu via cfe-commits]

zwuis wrote:

> Did you try following the comment in `getAddressSpaceAttributePrintValue()`?

Oh I didn't make it clear. I meant printing the `QualType`.

https://github.com/llvm/llvm-project/pull/178424