[llvm] [SLP] NFC. Replace TreeEntry::setOperandsInOrder with VLOperands. (PR #113880)

[Alexey Bataev via llvm-commits]

================
@@ -2542,7 +2546,8 @@ class BoUpSLP {
         ArrayRef<OperandData> Op0 = OpsVec.front();
         for (const OperandData &Data : Op0)
           UniqueValues.insert(Data.V);
-        for (ArrayRef<OperandData> Op : drop_begin(OpsVec, 1)) {
+        for (ArrayRef<OperandData> Op : make_range(
+                 OpsVec.begin() + 1, OpsVec.begin() + getNumOperands())) {
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alexey-bataev wrote:

```suggestion
        for (ArrayRef<OperandData> Op : ArrayRef(OpsVec).slice(1, getNumOperands())) {
```

https://github.com/llvm/llvm-project/pull/113880