* generator/StructGen.cs: Check to see if a GType is going to be
generated. If not, generate a GType.Pointer. This fixes bug
#70017.
* glib/TypeConverter.cs: Remove the .IsValueType check, as those
now have GType properties.
* gda/Gda.metadata: Change GdaValue.GType to GdaValue.GdaType.
* doc/en/Gda/Value.xml: Regenerated to reflect new API.
svn path=/trunk/gtk-sharp/; revision=36912