[llvm] [SLP] Replace most uses of for_each with range-for loops. NFC (PR #136146)

[Alexey Bataev via llvm-commits]

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@@ -20030,8 +20035,9 @@ bool BoUpSLP::collectValuesToDemote(
         if (Operands.empty()) {
           if (!IsTruncRoot)
             MaxDepthLevel = 1;
-          (void)for_each(E.Scalars, std::bind(IsPotentiallyTruncated, _1,
-                                              std::ref(BitWidth)));
+          for (Value *V : E.Scalars) {
+            (void)IsPotentiallyTruncated(V, BitWidth);
+          }
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alexey-bataev wrote:

Drop braces

https://github.com/llvm/llvm-project/pull/136146