[4.7 Beta1 blocker] plasma depending on kdelibs/experimental

[Dirk Mueller]

Hi, 

in the past we used to have the rule that kdelibs provides a stable ABI 
backward compatible API. When the need for experimental, not yet mature 
libraries came up, we introduced kdelibs/experimental. 

Back then, the rule was that no stable public API must depend on experimental, 
ABI-unsafe libraries. 

I now discover this to be broken in master: 

plasma/widgets/declarativewidget.cpp requires kdeclarative.h which comes from 
libkdedeclarative in kdelibs/experimental

Is the previous rule no longer valid? otherwise, how to deal with this 
situation? Move plasma to experimental? remove the dependency again?

Thanks,
Dirk