Make DenseMap's insert return a pair, to more closely resemble std::map.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53177 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Linker/LinkModules.cpp b/lib/Linker/LinkModules.cpp
index a2a298f..cd18bf4 100644
--- a/lib/Linker/LinkModules.cpp
+++ b/lib/Linker/LinkModules.cpp
@@ -114,7 +114,7 @@
   /// insert - This returns true if the pointer was new to the set, false if it
   /// was already in the set.
   bool insert(const Type *Src, const Type *Dst) {
-    if (!TheMap.insert(std::make_pair(Src, PATypeHolder(Dst))))
+    if (!TheMap.insert(std::make_pair(Src, PATypeHolder(Dst))).second)
       return false;  // Already in map.
     if (Src->isAbstract())
       Src->addAbstractTypeUser(this);