codegen: Use destroy_value in method calls
codegen: Use destroy_value in method calls

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