Fix instance parameter type for numeric types
Fix instance parameter type for numeric types

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