CodeWriter: Support external symbols
CodeWriter: Support external symbols

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