Use words please.

runtime/observatory/lib/src/elements/library_view.dart

 // Copyright (c) 2013, 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 library_view_element;
 
 import 'dart:async';
 import 'observatory_element.dart';
 import 'package:observatory/service.dart';
 import 'package:polymer/polymer.dart';
 
 
 @CustomTag('library-view')
 class LibraryViewElement extends ObservatoryElement {
   @published Library library;
 
   LibraryViewElement.created() : super.created();
 
-  Future<ServiceObject> eval(String expression) {
-    return library.isolate.eval(library, expression);
+  Future<ServiceObject> evaluate(String expression) {
+    return library.evaluate(expression);
   }
 
   Future refresh() {
     return library.reload();
   }
 
   Future refreshCoverage() {
     return library.refreshCoverage();
   }
 }