[css4-text] A non-inherited property to control behavior of whitespace-only child boxes

We keep running into situations where markup contains "non-semantic" 
whitespace.  This includes whitespace between flex item, whitespace 
between internal table parts, in some cases whitespace between 
inline-block kids of a block.  I expect the list to grow.

Would it make sense to have a property (non-inherited) to allow 
suppressing such whitespace-only child boxes when the author wants them 
suppressed?

-Boris