AOT generator ignores generic classes inheriting from generic types

[FrayxRulez]

Describe the bug AOT generator does not generate glue code for generic classes inheriting from generic types, causing the process to crash when trying to use these classes.

To Reproduce

// notice that there's no suggestion to add "partial" if it's missing
public partial class TestCollection<T> : ObservableCollection<T>
{
}
...
myListView.ItemsSource = new TestCollection<string>();

Expected behavior COM glue is properly generated and process won't crash

Version Info

2.1.1