[gnome-builder] symbol-tree: fix filtering

[Sébastien Lafargue <slafargue src gnome org>]

commit 32ff0410af82b2dbef5cc0e5c41e59bb4325c2a0
Author: Sebastien Lafargue <slafargue gnome org>
Date:   Thu Feb 25 20:27:12 2016 +0100

    symbol-tree: fix filtering

 plugins/symbol-tree/symbol-tree-panel.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/plugins/symbol-tree/symbol-tree-panel.c b/plugins/symbol-tree/symbol-tree-panel.c
index db3f8a8..ae1c093 100644
--- a/plugins/symbol-tree/symbol-tree-panel.c
+++ b/plugins/symbol-tree/symbol-tree-panel.c
@@ -266,7 +266,7 @@ symbol_tree__search_entry_changed (SymbolTreePanel *self,
 {
   const gchar *text;
 
-  g_return_if_fail (SYMBOL_IS_TREE (self));
+  g_return_if_fail (SYMBOL_IS_TREE_PANEL (self));
   g_return_if_fail (GTK_IS_SEARCH_ENTRY (search_entry));
 
   text = gtk_entry_get_text (GTK_ENTRY (search_entry));