[gtksourceviewmm] SourceCompletionItem should inherit from SourceCompletionProposal.

[Krzesimir Nowak <krnowak src gnome org>]

commit e7ae2a9b3e870e18ea4d480ddf1cf2fac3694421
Author: Krzesimir Nowak <qdlacz gmail com>
Date:   Thu Feb 25 17:05:06 2010 +0100

    SourceCompletionItem should inherit from SourceCompletionProposal.
    
    * gtksourceview/src/sourcecompletionitem.hg: SourceCompletionItem
    implements SourceCompletionProposal interface and thus should
    inherit it.

 gtksourceview/src/sourcecompletionitem.hg |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/gtksourceview/src/sourcecompletionitem.hg b/gtksourceview/src/sourcecompletionitem.hg
index dd78477..3f16b9b 100644
--- a/gtksourceview/src/sourcecompletionitem.hg
+++ b/gtksourceview/src/sourcecompletionitem.hg
@@ -34,7 +34,10 @@ namespace gtksourceview
  *
  * @newin{2,10}
  */
-class SourceCompletionItem : public Glib::Object
+class SourceCompletionItem
+:
+  public Glib::Object,
+  public SourceCompletionProposal
 {
   _CLASS_GOBJECT(SourceCompletionItem, GtkSourceCompletionItem, GTK_SOURCE_COMPLETION_ITEM, Glib::Object, GObject)
   _IMPLEMENTS_INTERFACE(SourceCompletionProposal)