Big merge from experimental to bleeding edge.

pkg/args/lib/args.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 lets you define parsers for parsing raw command-line arguments
  * into a set of options and values using [GNU][] and [POSIX][] style options.
  *
  * ## Defining options ##
  *
@@ skipping 335 matching lines @@
    * [FormatException] if [condition] is `false`.
    */
   _validate(bool condition, String message) {
     if (!condition) throw new FormatException(message);
   }
 
   /** Validates and stores [value] as the value for [option]. */
   _setOption(Map results, _Option option, value) {
     // See if it's one of the allowed values.
     if (option.allowed != null) {
-      _validate(option.allowed.some((allow) => allow == value),
+      _validate(option.allowed.any((allow) => allow == value),
           '"$value" is not an allowed value for option "${option.name}".');
     }
 
     if (option.allowMultiple) {
       results[option.name].add(value);
     } else {
       results[option.name] = value;
     }
   }
 
@@ skipping 170 matching lines @@
   operator [](String name) {
     if (!_options.containsKey(name)) {
       throw new ArgumentError(
           'Could not find an option named "$name".');
     }
 
     return _options[name];
   }
 
   /** Get the names of the options as a [Collection]. */
-  Collection<String> get options => _options.keys;
+  Collection<String> get options => _options.keys.toList();
 }
 
 class _Option {
   final String name;
   final String abbreviation;
   final List allowed;
   final defaultValue;
   final Function callback;
   final String help;
   final Map<String, String> allowedHelp;
@@ skipping 65 matching lines @@
     calculateColumnWidths();
 
     for (var name in args._optionNames) {
       var option = args._options[name];
       write(0, getAbbreviation(option));
       write(1, getLongOption(option));
 
       if (option.help != null) write(2, option.help);
 
       if (option.allowedHelp != null) {
-        var allowedNames = option.allowedHelp.keys;
-        allowedNames.sort((a, b) => a.compareTo(b));
+        var allowedNames = option.allowedHelp.keys.toList();
+        allowedNames.sort();
         newline();
         for (var name in allowedNames) {
           write(1, getAllowedTitle(name));
           write(2, option.allowedHelp[name]);
         }
         newline();
       } else if (option.allowed != null) {
         write(2, buildAllowedList(option));
       } else if (option.defaultValue != null) {
         if (option.isFlag && option.defaultValue == true) {
@@ skipping 131 matching lines @@
       allowedBuffer.add(allowed);
       if (allowed == option.defaultValue) {
         allowedBuffer.add(' (default)');
       }
       first = false;
     }
     allowedBuffer.add(']');
     return allowedBuffer.toString();
   }
 }