Initialize DelegateType local variables
Initialize DelegateType local variables

Fixes bug 607902.

jessevdk/vala,playya/vala,severinh/vala,themiwi/vala,frida/vala,phako/vala,frida/vala,severinh/vala,GNOME/vala,rvu95/vala,kamanashisroy/aroop,GNOME/vala,tjol/vala-tjol,rvu95/vala,themiwi/vala,Jc2k/vala,frida/vala,xdave/pvala,phako/vala,jessevdk/vala,jessevdk/vala,Distrotech/vala,Distrotech/vala,frida/vala,spidermonkdust/vala,themiwi/vala,tjol/vala-tjol,flobrosch/vala-fixes,Distrotech/vala,flobrosch/vala-fixes,playya/vala,kamanashisroy/aroop,kamanashisroy/aroop,GNOME/vala,rvu95/vala,tjol/vala-tjol,playya/vala,spidermonkdust/vala,GNOME/vala,spidermonkdust/vala,severinh/vala,frida/vala,flobrosch/vala-fixes,Jc2k/vala