[Interest] Tricks to improve moc performance?

[Richard Weickelt]

> This solution gets you a single build for all the the mocs, which is good, but 
> won't generate the best code that Peppe was talking about. You want the moc 
> for a given class to be in the class's own .cpp.

Unless you build with link-time optimization enabled, I suppose. Because
then translation units are no longer an optimization boundary.