[llvm] [llvm] Add NCD search on Array of basic blocks (NFC) (PR #119355)

[Philip Reames via llvm-commits]

preames wrote:

> @preames, @paperchalice, any other comments?

You've got an LGTM and we're a one approval culture.  My prior comments about reuse still stands, but that can easily be extended in a follow up commit.  

https://github.com/llvm/llvm-project/pull/119355