Rename Constant to ConstantValue and ConstExp to ConstantExpression.

sdk/lib/_internal/compiler/implementation/resolution/registry.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.
 
 part of resolution;
 
 /// [ResolutionRegistry] collects all resolution information. It stores node
 /// related information in a [TreeElements] mapping and registers calls with
 /// [Backend], [World] and [Enqueuer].
 // TODO(johnniwinther): Split this into an interface and implementation class.
@@ skipping 96 matching lines @@
   }
 
   void setType(Node node, DartType type) => mapping.setType(node, type);
 
   DartType getType(Node node) => mapping.getType(node);
 
   //////////////////////////////////////////////////////////////////////////////
   //  Node-to-Constant mapping functionality.
   //////////////////////////////////////////////////////////////////////////////
 
-  ConstExp getConstant(Node node) => mapping.getConstant(node);
+  ConstantExpression getConstant(Node node) => mapping.getConstant(node);
 
   //////////////////////////////////////////////////////////////////////////////
   //  Target/Label functionality.
   //////////////////////////////////////////////////////////////////////////////
 
   /// Register [node] to be the declaration of [label].
   void defineLabel(Label node, LabelDefinition label) {
     mapping.defineLabel(node, label);
   }
 
@@ skipping 237 matching lines @@
 
   void registerAssert(Send node) {
     mapping.setAssert(node);
     backend.resolutionCallbacks.onAssert(node, this);
   }
 
   bool isAssert(Send node) {
     return mapping.isAssert(node);
   }
 }