Test (Top): var3 => Top set var3
Test (Top): var1 => Top set var1
Test (Top): passed1 => this is copied
Override (Top::Extend1): var3 => Top set var3
Override (Top::Extend1): var1 => Top set var1
Override (Top::Extend1): passed1 => this is copied
Test (Top::Extend2): var3 => Top set var3
Test (Top::Extend2): var1 => Top set var1
Test (Top::Extend2): passed1 => this is copied
Test (Top::Extend2): something => extra