[gnome-builder] tooltips: add tooltips for previous/next location

[Christian Hergert <chergert src gnome org>]

commit 15f5ed34cde3dad915bf19c8cc44b7e38b300919
Author: Christian Hergert <christian hergert me>
Date:   Mon Feb 15 14:09:58 2016 -0800

    tooltips: add tooltips for previous/next location

 data/ui/ide-layout-tab.ui |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/data/ui/ide-layout-tab.ui b/data/ui/ide-layout-tab.ui
index c55a8f5..0560c98 100644
--- a/data/ui/ide-layout-tab.ui
+++ b/data/ui/ide-layout-tab.ui
@@ -16,6 +16,7 @@
               <object class="GtkButton" id="backward_button">
                 <property name="action-name">view-stack.go-backward</property>
                 <property name="focus-on-click">false</property>
+                <property name="tooltip-text" translatable="yes">Jump to previous location</property>
                 <property name="visible">true</property>
                 <child>
                   <object class="GtkImage">
@@ -29,6 +30,7 @@
               <object class="GtkButton" id="forward_button">
                 <property name="action-name">view-stack.go-forward</property>
                 <property name="focus-on-click">false</property>
+                <property name="tooltip-text" translatable="yes">Jump to next location</property>
                 <property name="visible">true</property>
                 <child>
                   <object class="GtkImage">