[llvm] [NFC] SimplifyCFG: Detect switch replacement earlier in `switchToLookup` (PR #155602)

[Nikita Popov via llvm-commits]

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@@ -6955,31 +6964,25 @@ static bool switchToLookupTable(SwitchInst *SI, IRBuilder<> &Builder,
                         Results, DL, TTI))
       return false;
 
-    // Append the result from this case to the list for each phi.
+    // Append the result  and result types from this case to the list for each
----------------
nikic wrote:

```suggestion
    // Append the result and result types from this case to the list for each
```

https://github.com/llvm/llvm-project/pull/155602