Move dart_types to elements/resolution_types

pkg/compiler/lib/src/constants/values.dart

 // Copyright (c) 2012, 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 dart2js.constants.values;
 
 import '../common.dart';
 import '../core_types.dart';
-import '../dart_types.dart';
+import '../elements/resolution_types.dart';
 import '../elements/elements.dart'
     show FieldElement, FunctionElement, PrefixElement;
 import '../tree/dartstring.dart';
 import '../util/util.dart' show Hashing;
 
 enum ConstantValueKind {
   FUNCTION,
   NULL,
   INT,
   DOUBLE,
@@ skipping 802 matching lines @@
   DartType getType(CommonElements types) => const DynamicType();
 
   ConstantValueKind get kind => ConstantValueKind.NON_CONSTANT;
 
   @override
   String toStructuredText() => 'NonConstant';
 
   @override
   String toDartText() => '>>non-constant<<';
 }