Make _shortLocale public

pkg/intl/lib/intl.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * This library provides internationalization and localization. This includes
  * message formatting and replacement, date and number formatting and parsing,
  * and utilities for working with Bidirectional text.
  *
  * ## Installing ##
@@ skipping 175 matching lines @@
     // TODO(alanknight): Previously we kept a single verified locale on the Intl
     // object, but with different verification for different uses, that's more
     // difficult. As a result, we call this more often. Consider keeping
     // verified locales for each purpose if it turns out to be a performance
     // issue.
     if (newLocale == null) return getCurrentLocale();
     if (localeExists(newLocale)) {
       return newLocale;
     }
     for (var each in
-        [canonicalizedLocale(newLocale), _shortLocale(newLocale)]) {
+        [canonicalizedLocale(newLocale), shortLocale(newLocale)]) {
       if (localeExists(each)) {
         return each;
       }
     }
     return onFailure(newLocale);
   }
 
   /**
    * The default action if a locale isn't found in verifiedLocale. Throw
    * an exception indicating the locale isn't correct.
    */
   static String _throwLocaleError(String localeName) {
     throw new ArgumentError("Invalid locale '$localeName'");
   }
 
   /** Return the short version of a locale name, e.g. 'en_US' => 'en' */
-  static String _shortLocale(String aLocale) {
+  static String shortLocale(String aLocale) {
     if (aLocale.length < 2) return aLocale;
     return aLocale.substring(0, 2).toLowerCase();
   }
 
   /**
    * Return the name [aLocale] turned into xx_YY where it might possibly be
    * in the wrong case or with a hyphen instead of an underscore. If
    * [aLocale] is null, for example, if you tried to get it from IE,
    * return the current system locale.
    */
@@ skipping 91 matching lines @@
    * unless for some reason this gets called inside a message that resets the
    * locale.
    */
   static String getCurrentLocale() {
     if (_defaultLocale == null) _defaultLocale = systemLocale;
     return _defaultLocale;
   }
 
   toString() => "Intl($locale)";
 }