Adds facilities for extracting Intl.message calls and generating code from translations

pkg/intl/lib/src/file_data_reader.dart

Index: pkg/intl/lib/src/file_data_reader.dart
diff --git a/pkg/intl/lib/src/file_data_reader.dart b/pkg/intl/lib/src/file_data_reader.dart
index 1c0b4ad442644b4c29905afdfeb299e746db2e01..4e6c2aef7aa29ef7db77d157b74ea450b39e9f35 100644
--- a/pkg/intl/lib/src/file_data_reader.dart
+++ b/pkg/intl/lib/src/file_data_reader.dart
@@ -10,6 +10,7 @@
 library file_data_reader;
 
 import 'dart:async';
+import 'package:pathos/path.dart';
 import 'dart:io';
 import 'intl_helpers.dart';
 
@@ -22,7 +23,7 @@ class FileDataReader implements LocaleDataReader {
 
   /// Read the locale data found for [locale] on our [path].
   Future read(String locale) {
-    var file = new File('$path$locale.json');
+    var file = new File(join(path, '$locale.json'));
     return file.readAsString();
   }
 }