Improve generated "Not enough arguments." TypeError exceptions.

Source/bindings/v8/ExceptionMessages.h

Index: Source/bindings/v8/ExceptionMessages.h
diff --git a/Source/bindings/v8/ExceptionMessages.h b/Source/bindings/v8/ExceptionMessages.h
index 8cd532caf681c6620277cdd9003e8d43f1c49048..424754d2c6bfb80894e5b96d5afae785d83e1278 100644
--- a/Source/bindings/v8/ExceptionMessages.h
+++ b/Source/bindings/v8/ExceptionMessages.h
@@ -37,9 +37,12 @@ namespace WebCore {
 
 class ExceptionMessages {
 public:
+    static String failedToConstruct(const String& type, const String& detail = String());
     static String failedToExecute(const String& method, const String& type, const String& detail = String());
     static String failedToGet(const String& property, const String& type, const String& detail);
     static String failedToSet(const String& property, const String& type, const String& detail);
+
+    static String notEnoughArguments(unsigned expected, unsigned providedleastNumMandatoryParams);
 };
 
 } // namespace WebCore