We draw small numbers over the icon of multiple objects of the same type.
Also, we make all inlined elements to be non-clickabled.
For modifiers we still do it the old way. In this case it is more important
to see the order then the ammount.
Reviewers: brecht, campbellbarton
Subscribers: billreynish, venomgfx
Design task and mockup: T54707
Differential Revision: https://developer.blender.org/D3497
f4f6e5b665