Duplicate overloads in C# from multiple Schema top-levels

{
    "definitions": {
	"Foo": { "type": "number"},
	"Bar": { "type": "number"}
    }
}

./script/quickesttype --src-lang schema --lang csharp --add-schema-top-level /definitions/ /tmp/bla.schema 

Partial output:

    public static class Serialize
    {
        public static string ToJson(this double self) => JsonConvert.SerializeObject(self, QuickType.Converter.Settings);
        public static string ToJson(this double self) => JsonConvert.SerializeObject(self, QuickType.Converter.Settings);
    }