Make first and last getters.

pkg/intl/tool/generate_locale_data_files.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.
 
 /**
  * A utility program to take locale data represented as a Dart map whose keys
  * are locale names and write it into individual JSON files named by locale.
  * This should be run any time the locale data changes.
  *
  * The files are written under "data/dates", in two subdirectories, "symbols"
@@ skipping 22 matching lines @@
   outputStream.writeString(
       '// Copyright (c) 2012, the Dart project authors.  Please see the '
       'AUTHORS file\n// for details. All rights reserved. Use of this source'
       'code is governed by a\n// BSD-style license that can be found in the'
       ' LICENSE file.\n\n'
       '/// Hard-coded list of all available locales for dates.\n');
   outputStream.writeString('final availableLocalesForDateFormatting = const [');
   List<String> allLocales = DateFormat.allLocalesWithSymbols();
   allLocales.forEach((locale) {
     outputStream.writeString('"$locale"');
-    if (locale == allLocales.last()) {
+    if (locale == allLocales.last) {
       outputStream.writeString('];');
     } else {
       outputStream.writeString(',\n    ');
     }
   });
 }
 
 void writeSymbolData() {
   dateTimeSymbolMap().forEach(
       (locale, symbols) => writeSymbols(locale, symbols));
@@ skipping 14 matching lines @@
 void writePatterns(locale, patterns) {
   var file = new File('${dataDirectory}patterns/${locale}.json');
   var outputStream = file.openOutputStream();
   outputStream.writeString(JSON.stringify(patterns));
   outputStream.close();
 }
 
 void writeToJSON(Dynamic data, OutputStream out) {
   out.writeString(JSON.stringify(data.serializeToMap()));
 }