Visit Node in CompileTimeConstantAnalyzer only if Node based

compiler/java/com/google/dart/compiler/resolver/NodeElement.java

Index: compiler/java/com/google/dart/compiler/resolver/NodeElement.java
diff --git a/compiler/java/com/google/dart/compiler/resolver/FieldElement.java b/compiler/java/com/google/dart/compiler/resolver/NodeElement.java
similarity index 56%
copy from compiler/java/com/google/dart/compiler/resolver/FieldElement.java
copy to compiler/java/com/google/dart/compiler/resolver/NodeElement.java
index 76ed8998d5dfaa5734c1446305f9f30de5f96a25..215efb26fe59988e59ca6a01f43b473d899d23c7 100644
--- a/compiler/java/com/google/dart/compiler/resolver/FieldElement.java
+++ b/compiler/java/com/google/dart/compiler/resolver/NodeElement.java
@@ -1,17 +1,13 @@
 // Copyright (c) 2011, 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.
-
 package com.google.dart.compiler.resolver;
 
-import com.google.dart.compiler.type.Type;
-
-public interface FieldElement extends Element {
-  boolean isStatic();
-
-  void setType(Type type);
-
-  MethodElement getGetter();
+import com.google.dart.compiler.ast.DartNode;
 
-  MethodElement getSetter();
+/**
+ * {@link Element} which has {@link DartNode}.
+ */
+public interface NodeElement extends Element {
+  DartNode getNode();
 }