Add kinds for serialization.

pkg/compiler/lib/src/resolution/access_semantics.dart

 // Copyright (c) 2015, 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.
 
 /**
  * Code for classifying the semantics of identifiers appearing in a Dart file.
  */
 library dart2js.access_semantics;
 
 import '../constants/expressions.dart';
@@ skipping 273 matching lines @@
   ConstantAccess.typedefTypeLiteral(this.constant)
       : super._(AccessKind.TYPEDEF_TYPE_LITERAL);
 
   ConstantAccess.dynamicTypeLiteral(this.constant)
       : super._(AccessKind.DYNAMIC_TYPE_LITERAL);
 }
 
 class StaticAccess extends AccessSemantics {
   final Element element;
 
-  StaticAccess._(AccessKind kind, this.element) : super._(kind);
+  StaticAccess.internal(AccessKind kind, this.element) : super._(kind);
 
   StaticAccess.superSetter(MethodElement this.element)
       : super._(AccessKind.SUPER_SETTER);
 
   StaticAccess.superField(FieldElement this.element)
       : super._(AccessKind.SUPER_FIELD);
 
   StaticAccess.superFinalField(FieldElement this.element)
       : super._(AccessKind.SUPER_FINAL_FIELD);
 
@@ skipping 171 matching lines @@
   /// The invoked constructor.
   final Element element;
 
   /// The type on which the constructor is invoked.
   final DartType type;
 
   ConstructorAccessSemantics(this.kind, this.element, this.type);
 
   String toString() => 'ConstructorAccessSemantics($kind, $element, $type)';
 }