Better arity checks for overloads

Source/bindings/tests/results/V8TestInterfaceConstructor2.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file has been auto-generated by code_generator_v8.py. DO NOT MODIFY!
 
 #include "config.h"
 #include "V8TestInterfaceConstructor2.h"
 
 #include "RuntimeEnabledFeatures.h"
@@ skipping 127 matching lines @@
             TestInterfaceConstructor2V8Internal::constructor3(info);
             return;
         }
         break;
     case 6:
         if (true) {
             TestInterfaceConstructor2V8Internal::constructor3(info);
             return;
         }
         break;
-    }
-    if (UNLIKELY(info.Length() < 1)) {
+    default:
         exceptionState.throwTypeError(ExceptionMessages::notEnoughArguments(1, info.Length()));
         exceptionState.throwIfNeeded();
         return;
     }
     exceptionState.throwTypeError("No matching constructor signature.");
     exceptionState.throwIfNeeded();
 }
 
 } // namespace TestInterfaceConstructor2V8Internal
 
@@ skipping 86 matching lines @@
     fromInternalPointer(object)->deref();
 }
 
 template<>
 v8::Handle<v8::Value> toV8NoInline(TestInterfaceConstructor2* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     return toV8(impl, creationContext, isolate);
 }
 
 } // namespace WebCore