[clang-tools-extra] [clang-tidy] Prefer the faster LLVM ADT sets and maps over `std::` ones (PR #174357)

[via cfe-commits]

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@@ -70,12 +70,13 @@ static FixItHint getCallFixItHint(const ObjCMessageExpr *Expr,
   StringRef Receiver =
       getReceiverString(Expr->getReceiverRange(), SM, LangOpts);
   // Some classes should use standard factory methods instead of alloc/init.
-  std::map<StringRef, StringRef> ClassToFactoryMethodMap = {{"NSDate", "date"},
-                                                            {"NSNull", "null"}};
-  auto FoundClassFactory = ClassToFactoryMethodMap.find(Receiver);
-  if (FoundClassFactory != ClassToFactoryMethodMap.end()) {
-    StringRef ClassName = FoundClassFactory->first;
-    StringRef FactorySelector = FoundClassFactory->second;
+  static constexpr std::pair<StringRef, StringRef> ClassToFactoryMethodMap[] = {
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EugeneZelenko wrote:

Please include `utility` instead of `map`.

https://github.com/llvm/llvm-project/pull/174357