Simpler return value from HashTable::add()/HashMap::add() and others

Source/core/svg/SVGDocumentExtensions.cpp

Index: Source/core/svg/SVGDocumentExtensions.cpp
diff --git a/Source/core/svg/SVGDocumentExtensions.cpp b/Source/core/svg/SVGDocumentExtensions.cpp
index c52c15b62109c5696642a25d020e7f05eebfd56d..c4a5a8f1444ffda93223737b3be9319549e14a60 100644
--- a/Source/core/svg/SVGDocumentExtensions.cpp
+++ b/Source/core/svg/SVGDocumentExtensions.cpp
@@ -153,8 +153,8 @@ void SVGDocumentExtensions::addPendingResource(const AtomicString& id, Element*
 
     HashMap<AtomicString, OwnPtr<SVGPendingElements> >::AddResult result = m_pendingResources.add(id, nullptr);
     if (result.isNewEntry)
-        result.iterator->value = adoptPtr(new SVGPendingElements);
-    result.iterator->value->add(element);
+        result.storedValue->value = adoptPtr(new SVGPendingElements);
+    result.storedValue->value->add(element);
 
     element->setHasPendingResources();
 }