Add Resolution and Parsing interfaces for computeType, ensureResolved and parseNode.

tests/compiler/dart2js/override_inheritance_test.dart

 // Copyright (c) 2014, 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.
 
 import 'dart:async';
 import 'package:async_helper/async_helper.dart';
 import 'compiler_helper.dart';
 import 'package:compiler/src/resolution/class_members.dart'
     show MembersCreator;
 
@@ skipping 11 matching lines @@
     testAbstractMethods(),
     testNoSuchMethod(),
   ]));
 }
 
 Future check(String source, {errors, warnings, hints, infos}) {
   return MockCompiler.create((MockCompiler compiler) {
     compiler.diagnosticHandler = createHandler(compiler, source);
     compiler.parseScript(source);
     var cls = compiler.mainApp.find('Class');
-    cls.ensureResolved(compiler);
+    cls.ensureResolved(compiler.resolution);
     MembersCreator.computeAllClassMembers(compiler, cls);
 
     toList(o) => o == null ? [] : o is List ? o : [o];
 
     compareMessageKinds(source, toList(errors), compiler.errors, 'error');
 
     compareMessageKinds(source, toList(warnings), compiler.warnings, 'warning');
 
     if (infos != null) {
       compareMessageKinds(source, toList(infos), compiler.infos, 'info');
@@ skipping 1494 matching lines @@
           class A {
             noSuchMethod(_) => null;
             method(); // testNoSuchMethod:13
           }
           class Class extends A {
           }
           """, warnings: MessageKind.UNIMPLEMENTED_METHOD_ONE,
                infos: MessageKind.UNIMPLEMENTED_METHOD_CONT),
   ]);
 }