Finish modifying analysis server to make use of code generation.

pkg/analysis_server/lib/src/computer/computer_highlights.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 computer.highlights;
 
-import 'package:analysis_server/src/protocol2.dart' show HighlightRegion,
-    HighlightRegionType;
+import 'package:analysis_server/src/protocol.dart' hide Element;
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/scanner.dart';
 
 
 /**
  * A computer for [HighlightRegion]s in a Dart [CompilationUnit].
  */
 class DartUnitHighlightsComputer {
   final CompilationUnit _unit;
@@ skipping 608 matching lines @@
     computer._addRegion_token(node.keyword, HighlightRegionType.KEYWORD);
     return super.visitWhileStatement(node);
   }
 
   @override
   Object visitWithClause(WithClause node) {
     computer._addRegion_token(node.withKeyword, HighlightRegionType.KEYWORD);
     return super.visitWithClause(node);
   }
 }