codegen: Use temporary variable for string concatenation
codegen: Use temporary variable for string concatenation

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