Make getKeys, getValues getters (keys, values).

utils/pub/pubspec.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.
 
 library pubspec;
 
 import 'package.dart';
 import 'source.dart';
 import 'source_registry.dart';
 import 'utils.dart';
@@ skipping 56 matching lines @@
       }
     }
 
     if (parsedPubspec.containsKey('version')) {
       version = new Version.parse(parsedPubspec['version']);
     }
 
     if (parsedPubspec.containsKey('dependencies')) {
       var dependencyEntries = parsedPubspec['dependencies'];
       if (dependencyEntries is! Map ||
-          dependencyEntries.getKeys().some((e) => e is! String)) {
+          dependencyEntries.keys.some((e) => e is! String)) {
         throw new FormatException(
             'The pubspec dependencies should be a map of package names, but '
             'was ${dependencyEntries}.');
       }
 
       dependencyEntries.forEach((name, spec) {
         var description, source;
         var versionConstraint = new VersionRange();
         if (spec == null) {
           description = name;
           source = sources.defaultSource;
         } else if (spec is String) {
           description = name;
           source = sources.defaultSource;
           versionConstraint = new VersionConstraint.parse(spec);
         } else if (spec is Map) {
           if (spec.containsKey('version')) {
             versionConstraint = new VersionConstraint.parse(
                 spec.remove('version'));
           }
 
-          var sourceNames = spec.getKeys();
+          var sourceNames = spec.keys;
           if (sourceNames.length > 1) {
             throw new FormatException(
                 'Dependency $name may only have one source: $sourceNames.');
           }
 
           var sourceName = only(sourceNames);
           if (sourceName is! String) {
             throw new FormatException(
                 'Source name $sourceName should be a string.');
           }
@@ skipping 46 matching lines @@
 
       if (parsedPubspec.containsKey('author')) {
         throw new FormatException('A pubspec should not have both an "author" '
             'and an "authors" field.');
       }
     }
 
     return new Pubspec(name, version, dependencies);
   }
 }