[cssom] Should shorthands in object from getComputedStyle be enumerable? #2877
Description
In #2529 we resolved that object returned from gCS should include shorthands, but it is not clear whether they should be enumerable from from that object.
I think I saw someone iterating the properties from gCS result to copy style of one element to another. If we have every shorthands listed there, there is a risk that stuff would get overridden if the order happens to be unfortunate (shorthand comes after its longhands?)
It was raised during the discussion of #2529.