codegen: Fix C code generated for out array arguments in async methods
codegen: Fix C code generated for out array arguments in async methods

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