Created Unassigned: Where is ScriptObjectBuilder? [27918]

Hello,

I am attempting to update AJAX Control Toolkit from v3 to v15. I have some legacy code that relies on ScriptObjectBuilder. More specifically, the code calls ScriptObjectBuilder.GetScriptReferences.

```
IEnumerable<ScriptReference> IScriptControl.GetScriptReferences()
{
foreach (ScriptReference modalReference in ScriptObjectBuilder.GetScriptReferences(typeof(ModalPopupExtender)))
yield return modalReference;

// Yields other script references
}
```

How should I update this code to work with v15?

Thank you