Add Ivar getter functions for instance and class variables.
Add Ivar getter functions for instance and class variables.

jerson/NodObjC,telerik/NodObjC,jerson/NodObjC,mralexgray/NodObjC,TooTallNate/NodObjC,TooTallNate/NodObjC,mralexgray/NodObjC,telerik/NodObjC,jerson/NodObjC