codegen: Fix boxing of value type different than the target type
codegen: Fix boxing of value type different than the target type

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