"Daewoo" is right.
Daewoo has pretty much been GM Korea since the '70s, anyway. Most of their vehicles since the '70s were rebadged or reworked GM platforms. The Nubira models that the Cruze replaced were basically developments off of GM's old J-car platform, anyway. Even the Aveo ran on a modified GM FWD T-platform.
And Buick is still selling the old Nubira as the Excelle in China. Baojun just launched their main model on that platform, as well.
So it's not like the Cruze comes from a corrupt line, or anything. Daewoo was able to make such cheap cars for so long, not only because SK was a lower-cost labor country, but because they kept recycling ancient GM platforms.