[tests] Fix the actor detection
[tests] Fix the actor detection

The test-unproject interactive test assumed that only the rectangle was
on the stage. As it turns out, labels can be picked as well.

djdeath/clutter,GNOME/clutter,djdeath/clutter,rkudiyarov/clutter_osx,ebassi/clutter,nobled/clutter,djdeath/clutter,collects/clutter,heysion/clutter-clone,djdeath/clutter-multithreaded,heysion/clutter-clone,jigpu/clutter,ebassi/clutter,kerrickstaley/clutter-vala,heysion/clutter-clone,heysion/clutter-clone,Distrotech/clutter,djdeath/clutter-multithreaded,spatulasnout/clutter,jigpu/clutter,collects/clutter,djdeath/clutter-android,heysion/clutter-clone,djdeath/clutter-android,djdeath/clutter,djdeath/clutter-multithreaded,jigpu/clutter,nobled/clutter,Distrotech/clutter,djdeath/clutter-android,spatulasnout/clutter,spatulasnout/clutter,jigpu/clutter,spatulasnout/clutter,djdeath/clutter-android,Distrotech/clutter,rkudiyarov/clutter_osx,GNOME/clutter,GNOME/clutter,tardyp/clutter,djdeath/clutter-android,dlespiau/clutter,Distrotech/clutter,GNOME/clutter,ebassi/clutter,ebassi/clutter,tardyp/clutter,tardyp/clutter,kerrickstaley/clutter-vala,collects/clutter,Distrotech/clutter,collects/clutter,GNOME/clutter,jigpu/clutter,djdeath/clutter-multithreaded,collects/clutter,dlespiau/clutter,jigpu/clutter,Distrotech/clutter,ebassi/clutter,kerrickstaley/clutter-vala,nobled/clutter,djdeath/clutter,kerrickstaley/clutter-vala,spatulasnout/clutter,rkudiyarov/clutter_osx,djdeath/clutter,dlespiau/clutter,rkudiyarov/clutter_osx