Improve generated TypeError exception messages in bindings.

Source/bindings/tests/results/V8TestExtendedEvent.cpp

 /*
     This file is part of the Blink open source project.
     This file has been auto-generated by CodeGeneratorV8.pm. DO NOT MODIFY!
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
@@ skipping 119 matching lines @@
     options.get("location", eventInit.location);
     if (options.get("keyLocation", eventInit.location))
         UseCounter::countDeprecation(activeScriptExecutionContext(), UseCounter::KeyboardEventKeyLocation);
     return true;
 }
 
 void V8TestExtendedEvent::constructorCallback(const v8::FunctionCallbackInfo<v8::Value>& args)
 {
     TRACE_EVENT_SCOPED_SAMPLING_STATE("Blink", "DOMConstructor");
     if (!args.IsConstructCall()) {
-        throwTypeError("DOM object constructor cannot be called as a function.", args.GetIsolate());
+        throwTypeError(ExceptionMessages::failedToConstruct("Event", "Please use the 'new' operator, this DOM object constructor cannot be called as a function."), args.GetIsolate());
         return;
     }
 
     if (ConstructorMode::current() == ConstructorMode::WrapExistingObject) {
         args.GetReturnValue().Set(args.Holder());
         return;
     }
 
     EventV8Internal::constructor(args);
 }
@@ skipping 66 matching lines @@
 }
 
 void V8TestExtendedEvent::derefObject(void* object)
 {
     fromInternalPointer(object)->deref();
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(TEST)