test-binding-pool: Remove usage of deprecated get_gid()
test-binding-pool: Remove usage of deprecated get_gid()

Use the actor name instead of a random, internal numeric id.

spatulasnout/clutter,djdeath/clutter,ebassi/clutter,Distrotech/clutter,kerrickstaley/clutter-vala,heysion/clutter-clone,spatulasnout/clutter,heysion/clutter-clone,GNOME/clutter,kerrickstaley/clutter-vala,djdeath/clutter,collects/clutter,djdeath/clutter-android,heysion/clutter-clone,spatulasnout/clutter,Distrotech/clutter,ebassi/clutter,collects/clutter,GNOME/clutter,Distrotech/clutter,jigpu/clutter,jigpu/clutter,djdeath/clutter,Distrotech/clutter,spatulasnout/clutter,Distrotech/clutter,collects/clutter,djdeath/clutter-multithreaded,djdeath/clutter-android,djdeath/clutter-multithreaded,jigpu/clutter,djdeath/clutter-multithreaded,jigpu/clutter,collects/clutter,ebassi/clutter,ebassi/clutter,djdeath/clutter-multithreaded,djdeath/clutter-android,jigpu/clutter,Distrotech/clutter,djdeath/clutter-android,heysion/clutter-clone,kerrickstaley/clutter-vala,djdeath/clutter,GNOME/clutter,GNOME/clutter,jigpu/clutter,djdeath/clutter,spatulasnout/clutter,heysion/clutter-clone,kerrickstaley/clutter-vala,GNOME/clutter,ebassi/clutter,collects/clutter,djdeath/clutter,djdeath/clutter-android