Tidy up error reporting for calling-constructor-as-function.

Source/bindings/templates/methods.cpp

 {##############################################################################}
 {% macro generate_method(method, world_suffix) %}
 {% filter conditional(method.conditional_string) %}
 static void {{method.name}}{{method.overload_index}}Method{{world_suffix}}(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     {# Local variables #}
     {% if method.has_exception_state %}
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "{{method.name}}", "{{interface_name}}", info.Holder(), info.GetIsolate());
     {% endif %}
     {% if method.number_of_required_arguments %}
@@ skipping 390 matching lines @@
     v8SetReturnValue(info, wrapper);
 }
 {% endmacro %}
 
 
 {##############################################################################}
 {% macro named_constructor_callback(constructor) %}
 static void {{v8_class}}ConstructorCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (!info.IsConstructCall()) {
-        throwTypeError(ExceptionMessages::failedToConstruct("{{constructor.name}}", "Please use the 'new' operator, this DOM object constructor cannot be called as a function."), info.GetIsolate());
+        throwTypeError(ExceptionMessages::constructorNotCallableAsFunction("{{constructor.name}}"), info.GetIsolate());
         return;
     }
 
     if (ConstructorMode::current() == ConstructorMode::WrapExistingObject) {
         v8SetReturnValue(info, info.Holder());
         return;
     }
 
     Document* document = currentDOMWindow(info.GetIsolate())->document();
     ASSERT(document);
@@ skipping 24 matching lines @@
 
     {% if has_custom_wrap %}
     v8::Handle<v8::Object> wrapper = wrap(impl.get(), info.Holder(), info.GetIsolate());
     {% else %}
     v8::Handle<v8::Object> wrapper = info.Holder();
     V8DOMWrapper::associateObjectWithWrapper<{{v8_class}}>(impl.release(), &{{v8_class}}Constructor::wrapperTypeInfo, wrapper, info.GetIsolate(), {{wrapper_configuration}});
     {% endif %}
     v8SetReturnValue(info, wrapper);
 }
 {% endmacro %}