[gtk] inspector: Fix expander arrow node names

[Timm Bäder <baedert src gnome org>]

commit 44137574a191dc6994b66e66be0b25f4fa2ff207
Author: Timm Bäder <mail baedert org>
Date:   Sun Oct 20 16:34:24 2019 +0200

    inspector: Fix expander arrow node names
    
    They vanished after the GtkExpander node rename

 gtk/inspector/object-tree.c | 4 ++--
 gtk/inspector/recorder.c    | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/gtk/inspector/object-tree.c b/gtk/inspector/object-tree.c
index 66af2c2fdb..816ce5ea73 100644
--- a/gtk/inspector/object-tree.c
+++ b/gtk/inspector/object-tree.c
@@ -1053,13 +1053,13 @@ gtk_inspector_object_tree_create_list_widget (gpointer row_item,
       GtkWidget *title, *arrow;
 
       child = g_object_new (GTK_TYPE_BOX, "css-name", "expander", NULL);
-      
+
       title = g_object_new (GTK_TYPE_TOGGLE_BUTTON, "css-name", "title", NULL);
       gtk_button_set_relief (GTK_BUTTON (title), GTK_RELIEF_NONE);
       g_object_bind_property (row_item, "expanded", title, "active", G_BINDING_BIDIRECTIONAL | 
G_BINDING_SYNC_CREATE);
       gtk_container_add (GTK_CONTAINER (child), title);
 
-      arrow = gtk_icon_new ("arrow");
+      arrow = gtk_icon_new ("expander");
       gtk_container_add (GTK_CONTAINER (title), arrow);
     }
   else
diff --git a/gtk/inspector/recorder.c b/gtk/inspector/recorder.c
index 862154dc69..2ed3649edb 100644
--- a/gtk/inspector/recorder.c
+++ b/gtk/inspector/recorder.c
@@ -322,14 +322,14 @@ create_widget_for_render_node (gpointer row_item,
       GtkWidget *title, *arrow;
 
       child = g_object_new (GTK_TYPE_BOX, "css-name", "expander", NULL);
-      
+
       title = g_object_new (GTK_TYPE_TOGGLE_BUTTON, "css-name", "title", NULL);
       gtk_button_set_relief (GTK_BUTTON (title), GTK_RELIEF_NONE);
       g_object_bind_property (row_item, "expanded", title, "active", G_BINDING_BIDIRECTIONAL | 
G_BINDING_SYNC_CREATE);
       gtk_container_add (GTK_CONTAINER (child), title);
       g_object_set_data_full (G_OBJECT (row), "make-sure-its-not-unreffed", g_object_ref (row_item), 
g_object_unref);
 
-      arrow = gtk_icon_new ("arrow");
+      arrow = gtk_icon_new ("expander");
       gtk_container_add (GTK_CONTAINER (title), arrow);
     }
   else