format: move shell_format_int_alternative_output() to ShellJS

gnome-shell-extension-prefs uses format(), but can't pull in Shell
(which is a dependency for the module), since that in turn would pull in
Meta. Fix this by moving the introspected int format function to ShellJS
instead.

https://bugzilla.gnome.org/show_bug.cgi?id=673106

src/shell-js.c

@@ -79,3 +79,15 @@ shell_js_add_extension_importer (const char  *target_object_script,
   JS_EndRequest (context);
   return ret;
 }
+
+/**
+ * shell_js_format_int_alternative_output:
+ * @intval:
+ *
+ * Returns: (transfer full):
+ */
+gchar *
+shell_js_format_int_alternative_output (gint intval)
+{
+  return g_strdup_printf ("%Id", intval);
+}

src/shell-js.h

@@ -11,6 +11,8 @@ gboolean shell_js_add_extension_importer (const char   *target_object_script,
                                           const char   *directory,
                                           GError      **error);
 
+gchar   *shell_js_format_int_alternative_output (gint intval);
+
 G_BEGIN_DECLS
 
 #endif /* __SHELL_JS_H__ */

src/shell-util.c

@@ -868,15 +868,3 @@ shell_util_wifexited (int  status,
 
   return ret;
 }
-
-/**
- * shell_format_int_alternative_output:
- * @intval:
- *
- * Returns: (transfer full):
- */
-gchar *
-shell_format_int_alternative_output (gint intval)
-{
-  return g_strdup_printf ("%Id", intval);
-}

src/shell-util.h

@@ -52,8 +52,6 @@ gboolean shell_session_is_active_for_systemd (void);
 gboolean shell_util_wifexited                  (int               status,
                                                 int              *exit);
 
-gchar    *shell_format_int_alternative_output  (gint              intval);
-
 
 G_END_DECLS