[clang] [clang][Sema] Improve `collectViableConversionCandidates` (PR #97908)

[via cfe-commits]

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@@ -6504,29 +6504,22 @@ static void
 collectViableConversionCandidates(Sema &SemaRef, Expr *From, QualType ToType,
                                   UnresolvedSetImpl &ViableConversions,
                                   OverloadCandidateSet &CandidateSet) {
-  for (unsigned I = 0, N = ViableConversions.size(); I != N; ++I) {
-    DeclAccessPair FoundDecl = ViableConversions[I];
+  for (DeclAccessPair FoundDecl : ViableConversions.pairs()) {
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cor3ntin wrote:

```suggestion
  for (const DeclAccessPair & FoundDecl : ViableConversions.pairs()) {
```

https://github.com/llvm/llvm-project/pull/97908