IDL: allow optional values to be undefined in overload resolution

Source/bindings/tests/results/V8TestInterfaceConstructor.cpp

Index: Source/bindings/tests/results/V8TestInterfaceConstructor.cpp
diff --git a/Source/bindings/tests/results/V8TestInterfaceConstructor.cpp b/Source/bindings/tests/results/V8TestInterfaceConstructor.cpp
index 167b220fdcadd1f736282c21cf7fe706c8996012..825854332332202719503f4ee980048a01704e99 100644
--- a/Source/bindings/tests/results/V8TestInterfaceConstructor.cpp
+++ b/Source/bindings/tests/results/V8TestInterfaceConstructor.cpp
@@ -125,7 +125,7 @@ static void constructor(const v8::FunctionCallbackInfo<v8::Value>& info)
         TestInterfaceConstructorV8Internal::constructor1(info);
         return;
     }
-    if (((info.Length() == 5) && (V8TestInterfaceEmpty::hasInstance(info[2], info.GetIsolate())) && (info[3]->IsObject()) && (info[4]->IsArray())) || ((info.Length() == 6) && (V8TestInterfaceEmpty::hasInstance(info[2], info.GetIsolate())) && (info[3]->IsObject()) && (info[4]->IsArray()) && (info[5]->IsObject())) || ((info.Length() == 7) && (V8TestInterfaceEmpty::hasInstance(info[2], info.GetIsolate())) && (info[3]->IsObject()) && (info[4]->IsArray()) && (info[5]->IsObject()) && (V8TestInterfaceEmpty::hasInstance(info[6], info.GetIsolate())))) {
+    if (((info.Length() == 5) && (V8TestInterfaceEmpty::hasInstance(info[2], info.GetIsolate())) && (info[3]->IsObject()) && (info[4]->IsArray())) || ((info.Length() == 6) && (V8TestInterfaceEmpty::hasInstance(info[2], info.GetIsolate())) && (info[3]->IsObject()) && (info[4]->IsArray()) && (info[5]->IsUndefined() || info[5]->IsObject())) || ((info.Length() == 7) && (V8TestInterfaceEmpty::hasInstance(info[2], info.GetIsolate())) && (info[3]->IsObject()) && (info[4]->IsArray()) && (info[5]->IsUndefined() || info[5]->IsObject()) && (V8TestInterfaceEmpty::hasInstance(info[6], info.GetIsolate())))) {
         TestInterfaceConstructorV8Internal::constructor2(info);
         return;
     }