void CompileAndRun(string xaml, CallbackExtensionCallback cb, IXamlParentStackProviderV1 parentStack)
=> Compile(xaml).create(new DictionaryServiceProvider
{
[typeof(CallbackExtensionCallback)] = cb,
[typeof(IXamlParentStackProviderV1)] = parentStack
});
DeferredContentTestsClass CompileAndRun(string xaml, CallbackExtensionCallback cb)
=> (DeferredContentTestsClass)Compile(xaml).create(new DictionaryServiceProvider
{
[typeof(CallbackExtensionCallback)] = cb,
});