Move Bidi functions into methods to make the docs look better

pkg/intl/lib/intl.dart

Index: pkg/intl/lib/intl.dart
===================================================================
--- pkg/intl/lib/intl.dart	(revision 13251)
+++ pkg/intl/lib/intl.dart	(working copy)
@@ -3,8 +3,16 @@
 // BSD-style license that can be found in the LICENSE file.
 
 /**
- * Internationalization object providing access to message formatting objects,
- * date formatting, parsing, bidirectional text relative to a specific locale.
+ * 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.
+ *
+ * For things that require locale or other data, there are multiple different
+ * ways of making that data available, which may require importing different
+ * libraries. See the class comments for more details.
+ *
+ * There is also a simple example application that can be found in the
+ * `example/basic` directory.
  */
 #library('intl');
 
@@ -86,7 +94,7 @@
   static String message(String message_str, [final String desc='',
       final Map examples=const {}, String locale, String name,
       List<String> args]) {
-    return _messageLookup.lookupMessage(
+    return messageLookup.lookupMessage(
         message_str, desc, examples, locale, name, args);
   }
 
@@ -203,23 +211,4 @@
     if (_defaultLocale == null) _defaultLocale = systemLocale;
     return _defaultLocale;
   }
-}
-
-/**
- * The internal mechanism for looking up messages. We expect this to be set
- * by the implementing package so that we're not dependent on its
- * implementation.
- */
-var _messageLookup = const
-    UninitializedLocaleData('initializeMessages(<locale>)');
-
-/**
- * Initialize the message lookup mechanism. This is for internal use only.
- * User applications should import message_lookup_local.dart and call
- * initializeMessages
- */
-void initializeInternalMessageLookup(Function lookupFunction) {
-  if (_messageLookup is UninitializedLocaleData) {
-    _messageLookup = lookupFunction();
-  }
 }