* generator/Method.cs : deal with owned retvals. * generator/ReturnValue.cs : add Owned prop. * gnome/Gnome.metadata : mark Thumbnail.ScaleDownPixbuf return owned. [Fixes #71335] svn path=/trunk/gtk-sharp/; revision=39128
* generator/Makefile.am : add new file. * generator/Method.cs : refactoring to use ReturnValue. * generator/MethodBody.cs : remove unnecessary code. * generator/ReturnValue.cs : class for redundant retval handling. * generator/Signal.cs : refactoring for ReturnValue. * generator/SignalHandler.cs : refactoring for ReturnValue. svn path=/trunk/gtk-sharp/; revision=36219