codegen: Drop unnecessary comma expressions in local variables
codegen: Drop unnecessary comma expressions in local variables

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