Better arity checks for overloads

Source/bindings/v8/ExceptionMessages.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 73 matching lines @@
 String ExceptionMessages::constructorNotCallableAsFunction(const char* type)
 {
     return failedToConstruct(type, "Please use the 'new' operator, this DOM object constructor cannot be called as a function.");
 }
 
 String ExceptionMessages::incorrectPropertyType(const String& property, const String& detail)
 {
     return "The '" + property + "' property " + detail;
 }
 
+String ExceptionMessages::invalidArity(const char* expected, unsigned provided)
+{
+    return "Valid arities are: " + String(expected) + ", but " + String::number(provided) + " arguments provided.";
+}
+
 String ExceptionMessages::argumentNullOrIncorrectType(int argumentIndex, const String& expectedType)
 {
     return "The " + ordinalNumber(argumentIndex) + " argument provided is either null, or an invalid " + expectedType + " object.";
 }
 
 String ExceptionMessages::notAnArrayTypeArgumentOrValue(int argumentIndex)
 {
     String kind;
     if (argumentIndex) // method argument
         kind = ordinalNumber(argumentIndex) + " argument";
@@ skipping 56 matching lines @@
     return formatPotentiallyNonFiniteNumber(number);
 }
 
 template <>
 String ExceptionMessages::formatNumber<double>(double number)
 {
     return formatPotentiallyNonFiniteNumber(number);
 }
 
 } // namespace WebCore