Remove a masking with index()
Remove a masking with index()

The binding-pool test unit had a variable masking the index() function
declared inside string.h.

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