Update intl to new import syntax

pkg/intl/tool/generate_locale_data_files.dart

Index: pkg/intl/tool/generate_locale_data_files.dart
===================================================================
--- pkg/intl/tool/generate_locale_data_files.dart	(revision 14371)
+++ pkg/intl/tool/generate_locale_data_files.dart	(working copy)
@@ -12,13 +12,13 @@
  * which is sourced by the date_symbol_data... files.
  */
 
-#import('../lib/date_symbols.dart');
-#import('../lib/date_symbol_data_local.dart');
-#import('../lib/date_time_patterns.dart');
-#import('../lib/intl.dart');
-#import('dart:io');
-#import('dart:json');
-#import('../test/data_directory.dart');
+import '../lib/date_symbols.dart';
+import '../lib/date_symbol_data_local.dart';
+import '../lib/date_time_patterns.dart';
+import '../lib/intl.dart';
+import 'dart:io';
+import 'dart:json';
+import '../test/data_directory.dart';
 
 main() {
   initializeDateFormatting("en_IGNORED", null);
@@ -72,6 +72,6 @@
   outputStream.close();
 }
 
-void writeToJSON(Dynamic data, OutputStream out) {
+void writeToJSON(dynamic data, OutputStream out) {
   out.writeString(JSON.stringify(data.serializeToMap()));
 }