Inferring objects by their instances

[c71n93]

For this example:

[] > obj1
  [] > attr1
    1 > @

[] > obj2
  [] > attr2
    2 > @

[x] > main
  x > instance
  instance.attr1 > @

AOI analysis result should look like this:

 <aoi>
    <obj fqn="main.x">
       <inferred>
          <obj fqn="obj1"/>
       </inferred>
    </obj>
 </aoi>

But it actually look like this:

 <aoi>
    <obj fqn="main.x">
       <inferred/>
    </obj>
 </aoi>

So current version of tool can't infer objects by their instances. This functionality should be added.