[gtkada] GtkAda 1.2.2 Code generation issues

[Rob Veenker]

The version of gate (Win32) hat is supplied with GtkAda no longer merges
existing (and user-modified) code.
Maybe it would be better to generate 'separate' stubs instead of dummy
procedures. This way modified code will not be overwritten.

Furthermore I noticed that generated code for GtkTreeView signal handlers is
not always complete (doesn't result in compilable code). Some 'with' and
'use' statements are missing. (One example: A handler for row_activate
misses Gtk.Tree_Model and Gtk.Tree_View_Column)

Regards,

Rob