[gnome-shell] js: Avoid double declarations with let

[Philip Chimento <pchimento src gnome org>]

commit aefd61c3db6056063ada1cb58bf67b088cc59ff0
Author: Philip Chimento <philip endlessm com>
Date:   Thu Feb 9 18:12:59 2017 -0800

    js: Avoid double declarations with let
    
    The following code is a syntax error in ES6:
    
        let a = 'something';
        let a = 'other thing';
    
    Previously GJS would silently accept this code, but in the next release the
    SpiderMonkey JS engine will be more ES6-compliant.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=778425

 js/misc/keyboardManager.js  |    3 ++-
 js/ui/dateMenu.js           |    2 +-
 js/ui/endSessionDialog.js   |    1 -
 js/ui/notificationDaemon.js |    2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/js/misc/keyboardManager.js b/js/misc/keyboardManager.js
index e8a3e78..95afb4a 100644
--- a/js/misc/keyboardManager.js
+++ b/js/misc/keyboardManager.js
@@ -128,7 +128,8 @@ const KeyboardManager = new Lang.Class({
         if (!found)
             [, , id] = GnomeDesktop.get_input_source_from_locale(DEFAULT_LOCALE);
 
-        let [found, , , _layout, _variant] = this._xkbInfo.get_layout_info(id);
+        let _layout, _variant;
+        [found, , , _layout, _variant] = this._xkbInfo.get_layout_info(id);
         if (found)
             return { layout: _layout, variant: _variant };
         else
diff --git a/js/ui/dateMenu.js b/js/ui/dateMenu.js
index 98c4aa4..36c7950 100644
--- a/js/ui/dateMenu.js
+++ b/js/ui/dateMenu.js
@@ -77,7 +77,7 @@ const TodayButton = new Lang.Class({
          * below the time in the shell; it should combine the weekday and the
          * date, e.g. "Tuesday February 17 2015".
          */
-        let dateFormat = Shell.util_translate_time_string (N_("%A %B %e %Y"));
+        dateFormat = Shell.util_translate_time_string (N_("%A %B %e %Y"));
         this.actor.accessible_name = date.toLocaleFormat(dateFormat);
     }
 });
diff --git a/js/ui/endSessionDialog.js b/js/ui/endSessionDialog.js
index 2ec8e04..42977d3 100644
--- a/js/ui/endSessionDialog.js
+++ b/js/ui/endSessionDialog.js
@@ -457,7 +457,6 @@ const EndSessionDialog = new Lang.Class({
         _setLabelText(this._descriptionLabel, description);
         _setLabelText(this._subjectLabel, subject);
 
-        let dialogContent = DialogContent[this._type];
         if (dialogContent.iconName) {
             this._iconBin.child = new St.Icon({ icon_name: dialogContent.iconName,
                                                 icon_size: _DIALOG_ICON_SIZE,
diff --git a/js/ui/notificationDaemon.js b/js/ui/notificationDaemon.js
index 24c82b3..623a10f 100644
--- a/js/ui/notificationDaemon.js
+++ b/js/ui/notificationDaemon.js
@@ -186,7 +186,7 @@ const FdoNotificationDaemon = new Lang.Class({
             return source;
         }
 
-        let source = new FdoNotificationDaemonSource(title, pid, sender, ndata ? 
ndata.hints['desktop-entry'] : null);
+        source = new FdoNotificationDaemonSource(title, pid, sender, ndata ? ndata.hints['desktop-entry'] : 
null);
 
         this._sources.push(source);
         source.connect('destroy', Lang.bind(this, function() {