GtkBuilder: Fix more GMenu leaks in the parser
GtkBuilder: Fix more GMenu leaks in the parser

Adamovskiy/gtk,jigpu/gtk,ahodesuka/gtk,chergert/gtk,chergert/gtk,Lyude/gtk-,grubersjoe/adwaita,davidgumberg/gtk,alexlarsson/gtk,jigpu/gtk,jadahl/gtk,grubersjoe/adwaita,Lyude/gtk-,ahodesuka/gtk,jessevdk/gtk,jadahl/gtk,jadahl/gtk,jadahl/gtk,davidgumberg/gtk,jadahl/gtk,Adamovskiy/gtk,jigpu/gtk,davidgumberg/gtk,alexlarsson/gtk,alexlarsson/gtk,jigpu/gtk,jadahl/gtk,davidgumberg/gtk,ahodesuka/gtk,jessevdk/gtk,jadahl/gtk,alexlarsson/gtk,grubersjoe/adwaita,Adamovskiy/gtk,davidgumberg/gtk,chergert/gtk,Lyude/gtk-,grubersjoe/adwaita,chergert/gtk,alexlarsson/gtk,jigpu/gtk,chergert/gtk,davidgumberg/gtk,ahodesuka/gtk,Adamovskiy/gtk,jigpu/gtk,Adamovskiy/gtk,alexlarsson/gtk,Lyude/gtk-,jessevdk/gtk,Lyude/gtk-,Lyude/gtk-,grubersjoe/adwaita,grubersjoe/adwaita,alexlarsson/gtk,Adamovskiy/gtk,grubersjoe/adwaita,Adamovskiy/gtk,jigpu/gtk,jadahl/gtk,ahodesuka/gtk,jessevdk/gtk,davidgumberg/gtk,davidgumberg/gtk,jessevdk/gtk,Lyude/gtk-,grubersjoe/adwaita,alexlarsson/gtk,jessevdk/gtk,chergert/gtk,ahodesuka/gtk,ahodesuka/gtk,jigpu/gtk,ahodesuka/gtk,chergert/gtk,chergert/gtk,jessevdk/gtk,Adamovskiy/gtk,Lyude/gtk-