[gnome-shell/wip/fmuellner/minor-bug-fixes: 8/9] keyboard: Fix undefined variable in fall-through message

[Florian Müllner <fmuellner src gnome org>]

commit b5caf93f13e7b640ef8ed35b4baa2e0b0370a6cf
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue Jan 29 22:58:40 2019 +0100

    keyboard: Fix undefined variable in fall-through message
    
    Spotted by eslint.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/375

 js/ui/status/keyboard.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/js/ui/status/keyboard.js b/js/ui/status/keyboard.js
index 0e5b18504..7f830b6df 100644
--- a/js/ui/status/keyboard.js
+++ b/js/ui/status/keyboard.js
@@ -969,7 +969,8 @@ class InputSourceIndicator extends PanelMenu.Button {
             }
 
             let item;
-            switch (prop.get_prop_type()) {
+            let type = prop.get_prop_type();
+            switch (type) {
             case IBus.PropType.MENU:
                 item = new PopupMenu.PopupSubMenuMenuItem(prop.get_label().get_text());
                 this._buildPropSubMenu(item.menu, prop.get_sub_props());