Make getKeys, getValues getters (keys, values).

lib/compiler/implementation/lib/js_helper.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('dart:_js_helper');
 
 #import('dart:coreimpl');
 
 #source('constant_map.dart');
 #source('native_helper.dart');
@@ skipping 614 matching lines @@
     if (positionalArguments != null) {
       argumentCount += positionalArguments.length;
       arguments.addAll(positionalArguments);
     }
 
     // Sort the named arguments to get the right selector name and
     // arguments order.
     if (namedArguments != null && !namedArguments.isEmpty) {
       // Call new List.from to make sure we get a JavaScript array.
       List<String> listOfNamedArguments =
-          new List<String>.from(namedArguments.getKeys());
+          new List<String>.from(namedArguments.keys);
       argumentCount += namedArguments.length;
       // We're sorting on strings, and the behavior is the same between
       // Dart string sort and JS string sort. To avoid needing the Dart
       // sort implementation, we use the JavaScript one instead.
       JS('void', '#.sort()', listOfNamedArguments);
       listOfNamedArguments.forEach((String name) {
         buffer.add('\$$name');
         arguments.add(namedArguments[name]);
       });
     }
@@ skipping 755 matching lines @@
     JS('void', r'#.runtimeTypeCache[#] = #', JS_CURRENT_ISOLATE(), key,
        runtimeType);
   }
   return runtimeType;
 }
 
 String getRuntimeTypeString(var object) {
   var typeInfo = JS('Object', r'#.builtin$typeInfo', object);
   return JS('String', r'#.runtimeType', typeInfo);
 }