Adjust server for API changes

pkg/analysis_server/test/protocol_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.
 
 library test.protocol;
 
 import 'dart:convert';
 
 import 'package:analysis_server/src/protocol.dart';
 import 'package:unittest/unittest.dart';
@@ skipping 371 matching lines @@
   @runTest
   static void asInt() {
     setUp();
     expect(makeDatum(1).asInt(), equals(1));
     expect(makeDatum('2').asInt(), equals(2));
     expect(() => makeDatum('xxx').asInt(), _throwsInvalidParameter);
     expect(() => makeDatum(true).asInt(), _throwsInvalidParameter);
   }
 
   @runTest
+  static void asList_nonList() {
+    setUp();
+    expect(() => makeDatum(3).asList((datum) => null), _throwsInvalidParameter);
+  }
+
+  @runTest
+  static void asList_emptyList() {
+    setUp();
+    expect(makeDatum([]).asList((datum) => datum.asString()), equals([]));
+  }
+
+  @runTest
+  static void asList_nonEmptyList() {
+    setUp();
+    expect(makeDatum(['foo', 'bar']).asList((datum) => datum.asString()), equals(['foo', 'bar']));
+  }
+
+  @runTest
   static void asString() {
     setUp();
     expect(makeDatum('foo').asString(), equals('foo'));
     expect(() => makeDatum(3).asString(), _throwsInvalidParameter);
   }
 
   @runTest
   static void asStringList() {
     setUp();
     expect(makeDatum(['foo', 'bar']).asStringList(), equals(['foo', 'bar']));
@@ skipping 146 matching lines @@
     original.setResult('foo', 'bar');
     Response response = new Response.fromJson(original.toJson());
     expect(response.id, equals('myId'));
     Map<String, Object> result = response.result;
     expect(result.length, equals(1));
     expect(result['foo'], equals('bar'));
   }
 }
 
 Matcher _throwsRequestFailure = throwsA(new isInstanceOf<RequestFailure>());