[clang] [clang] fix half && bfloat16 convert node expr codegen (PR #89051)

[Matt Arsenault via cfe-commits]

arsenm wrote:

> ping Ping Do you have another review comment?

This has now confused me. You should roll back to the case where you only changed the scalar behavior. Any vector behavior change should be a separate PR, if that is even correct. I would still like to know what the gcc behavior is in this case 


https://github.com/llvm/llvm-project/pull/89051