[gtk+] Use an GtkImage instead of GtkArrow

[Matthias Clasen <matthiasc src gnome org>]

commit 8219a6b2265bfe5db35cdfadbaf0abfad567e6e1
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jan 29 13:21:01 2016 -0500

    Use an GtkImage instead of GtkArrow
    
    GtkArrow is deprecated, and the recommended replacement
    is GtkImage.

 testsuite/reftests/icon-vfuncs.css |    1 +
 testsuite/reftests/icon-vfuncs.ui  |    6 +++---
 2 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/testsuite/reftests/icon-vfuncs.css b/testsuite/reftests/icon-vfuncs.css
index ceee34e..624ba6b 100644
--- a/testsuite/reftests/icon-vfuncs.css
+++ b/testsuite/reftests/icon-vfuncs.css
@@ -1,6 +1,7 @@
 @import "reset-to-defaults.css";
 
 * {
+  color: lime;
   -gtk-icon-source: url("green-20x20.png");
   min-width: 16px;
   min-height: 16px;
diff --git a/testsuite/reftests/icon-vfuncs.ui b/testsuite/reftests/icon-vfuncs.ui
index 31a55fa..8724dfa 100644
--- a/testsuite/reftests/icon-vfuncs.ui
+++ b/testsuite/reftests/icon-vfuncs.ui
@@ -107,11 +107,11 @@
           </packing>
         </child>
         <child>
-          <object class="GtkArrow" id="arrow1">
+          <object class="GtkImage" id="arrow1">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
-            <property name="width_request">16</property>
-            <property name="height_request">16</property>
+            <property name="icon_name">pan-down-symbolic</property>
+            <property name="icon_size">1</property>
             <property name="halign">center</property>
             <property name="valign">center</property>
           </object>