[llvm] [SimplifyCFG][swifterror] Don't sink calls with swifterror params (PR #139015)

[Ellis Hoag via llvm-commits]

ellishg wrote:

> In particular, legality here depends on whether sinking requires the introduction of a phi node or not. Could you add test variant where the swifterror argument is the same in both calls, and another argument differs?

Just to make sure I understand. In this case the sink would be safe, right?

https://github.com/llvm/llvm-project/pull/139015