[clang] [CIR] React to breaking change to DataLayoutTypeInterface (PR #128772)

[Nathan Lanza via cfe-commits]

lanza wrote:

> @bcardosolopes @lanza You will run into this same problem with the next incubator rebase. The fix should be the same, though there will be more `getPreferredAlignment` functions to delete.

Nice, thanks for the heads up.

https://github.com/llvm/llvm-project/pull/128772