GIR parser: Support constructors throwing errors
GIR parser: Support constructors throwing errors

Jc2k/vala,frida/vala,rvu95/vala,frida/vala,jessevdk/vala,tjol/vala-tjol,frida/vala,GNOME/vala,phako/vala,Distrotech/vala,GNOME/vala,themiwi/vala,spidermonkdust/vala,spidermonkdust/vala,playya/vala,tjol/vala-tjol,rvu95/vala,Jc2k/vala,Distrotech/vala,jessevdk/vala,kamanashisroy/aroop,frida/vala,playya/vala,kamanashisroy/aroop,playya/vala,tjol/vala-tjol,Distrotech/vala,phako/vala,GNOME/vala,flobrosch/vala-fixes,lovebug356/vala,GNOME/vala,lovebug356/vala,themiwi/vala,flobrosch/vala-fixes,severinh/vala,themiwi/vala,rvu95/vala,severinh/vala,xdave/pvala,kamanashisroy/aroop,spidermonkdust/vala,jessevdk/vala,severinh/vala,frida/vala,flobrosch/vala-fixes