[clang] [llvm] [mlir] [ADT] Give DenseMapPair its own members instead of a std::pair base. NFC (PR #221853)

[Fangrui Song via cfe-commits]

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@@ -83,7 +83,7 @@ void PDLPatternModule::mergeIn(PDLPatternModule &&other) {
   for (auto &it : other.configs)
     configs.emplace_back(std::move(it));
   for (auto &it : other.configMap)
-    configMap.insert(it);
+    configMap.try_emplace(it.first, it.second);
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MaskRay wrote:

thx. adopted!

https://github.com/llvm/llvm-project/pull/221853