Explore states: display states listed in macro

[kosist]

In case when string constant contains list of states, and there is marco within those states, then it would be nice to display states which are listed in the macro (maybe, within some special section in the Explore states window). It should even more simplify navigation between states: because now we can select and navigate to macro; but then we need to right-click and open Explore states window for string constant listed in Macro.