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

Source/core/inspector/InspectorConsoleAgent.cpp

Index: Source/core/inspector/InspectorConsoleAgent.cpp
diff --git a/Source/core/inspector/InspectorConsoleAgent.cpp b/Source/core/inspector/InspectorConsoleAgent.cpp
index 41d95e207664c49a0e2ef113cb9f6435ffcf9cb4..773e46543f18a8f1d0fab5c7a101d87cae3549dc 100644
--- a/Source/core/inspector/InspectorConsoleAgent.cpp
+++ b/Source/core/inspector/InspectorConsoleAgent.cpp
@@ -247,7 +247,7 @@ void InspectorConsoleAgent::consoleCount(ScriptState* state, PassRefPtr<ScriptAr
                                         : String(title + '@');
 
     HashCountedSet<String>::AddResult result = m_counts.add(identifier);
-    String message = title + ": " + String::number(result.iterator->value);
+    String message = title + ": " + String::number(result.storedValue->value);
     addMessageToConsole(ConsoleAPIMessageSource, LogMessageType, DebugMessageLevel, message, callStack);
 }