[llvm] Clean up after transition into opaque pointers. NFC (PR #102631)

[Nikita Popov via llvm-commits]

================
@@ -2386,7 +2386,7 @@ static Instruction *foldSelectCmpBitcasts(SelectInst &Sel,
   } else {
     return nullptr;
   }
-  return CastInst::CreateBitOrPointerCast(NewSel, Sel.getType());
+  return CastInst::Create(Instruction::BitCast, NewSel, Sel.getType());
----------------
nikic wrote:

```suggestion
  return new BitCastInst(NewSel, Sel.getType());
```

https://github.com/llvm/llvm-project/pull/102631