Make more use of generated classes in analysis server.

pkg/analysis_server/tool/spec/codegen_dart_protocol.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 codegen.protocol;
 
 import 'dart:convert';
 
 import 'api.dart';
 import 'codegen_tools.dart';
@@ skipping 458 matching lines @@
         keyCode = toJsonCode(resolvedType.keyType);
       } else {
         keyCode = new ToJsonIdentity(dartType(resolvedType.keyType));
       }
       ToJsonCode valueCode = toJsonCode(resolvedType.valueType);
       if (keyCode.isIdentity && valueCode.isIdentity) {
         return new ToJsonIdentity(dartType(resolvedType));
       } else {
         return new ToJsonSnippet(dartType(type), (String value) {
           StringBuffer result = new StringBuffer();
-          result.write('_mapMap($value');
+          result.write('mapMap($value');
           if (!keyCode.isIdentity) {
             result.write(', keyCallback: ${keyCode.asClosure}');
           }
           if (!valueCode.isIdentity) {
             result.write(', valueCallback: ${valueCode.asClosure}');
           }
           result.write(')');
           return result.toString();
         });
       }
@@ skipping 338 matching lines @@
   CodegenProtocolVisitor visitor = new CodegenProtocolVisitor(readApi());
   return visitor.collectCode(visitor.visitApi);
 });
 
 /**
  * Translate spec_input.html into protocol_matchers.dart.
  */
 main() {
   target.generate();
 }