Declare types used in implicit casts
Declare types used in implicit casts

Fixes bug 584163.

rvu95/vala,GNOME/vala,kamanashisroy/aroop,themiwi/vala,severinh/vala,xdave/pvala,GNOME/vala,playya/vala,playya/vala,Distrotech/vala,themiwi/vala,spidermonkdust/vala,frida/vala,jessevdk/vala,severinh/vala,rvu95/vala,kamanashisroy/aroop,frida/vala,frida/vala,tjol/vala-tjol,jessevdk/vala,rvu95/vala,tjol/vala-tjol,spidermonkdust/vala,flobrosch/vala-fixes,Distrotech/vala,phako/vala,jessevdk/vala,phako/vala,GNOME/vala,severinh/vala,lovebug356/vala,frida/vala,lovebug356/vala,frida/vala,GNOME/vala,Jc2k/vala,flobrosch/vala-fixes,Jc2k/vala,tjol/vala-tjol,playya/vala,themiwi/vala,spidermonkdust/vala,Distrotech/vala,flobrosch/vala-fixes,kamanashisroy/aroop