Do a global GAsyncReadyFunc scope=async rule.
Do a global GAsyncReadyFunc scope=async rule.

* gio/Gio.metadata: mark all AsyncReadyFuncs as async scope.  also
fixes a struct->boxed update that was causing a mis-apply.

sillsdev/gtk-sharp,antoniusriha/gtk-sharp,akrisiun/gtk-sharp,Gankov/gtk-sharp,sillsdev/gtk-sharp,openmedicus/gtk-sharp,orion75/gtk-sharp,openmedicus/gtk-sharp,Gankov/gtk-sharp,akrisiun/gtk-sharp,sillsdev/gtk-sharp,antoniusriha/gtk-sharp,Gankov/gtk-sharp,Gankov/gtk-sharp,akrisiun/gtk-sharp,openmedicus/gtk-sharp,orion75/gtk-sharp,Gankov/gtk-sharp,antoniusriha/gtk-sharp,akrisiun/gtk-sharp,sillsdev/gtk-sharp,openmedicus/gtk-sharp,openmedicus/gtk-sharp,orion75/gtk-sharp,orion75/gtk-sharp,akrisiun/gtk-sharp,antoniusriha/gtk-sharp,antoniusriha/gtk-sharp,orion75/gtk-sharp,Gankov/gtk-sharp,openmedicus/gtk-sharp,sillsdev/gtk-sharp,openmedicus/gtk-sharp