Record information about constants in dump info

pkg/compiler/lib/src/js_emitter/full_emitter/emitter.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 dart2js.js_emitter.full_emitter;
 
 import 'dart:convert';
 import 'dart:collection' show HashMap;
 
 import 'package:js_runtime/shared/embedded_names.dart' as embeddedNames;
@@ skipping 788 matching lines @@
         cachedEmittedConstants.add(constantValue);
       }
       parts.add(buildConstantInitializer(constantValue));
     }
 
     return new jsAst.Block(parts);
   }
 
   jsAst.Statement buildConstantInitializer(ConstantValue constant) {
     jsAst.Name name = namer.constantName(constant);
-    return js.statement('#.# = #',
+    jsAst.Statement initializer = js.statement('#.# = #',
                         [namer.globalObjectForConstant(constant), name,
                          constantInitializerExpression(constant)]);
+    compiler.dumpInfoTask.registerConstantAst(constant, initializer);
+    return initializer;
   }
 
   jsAst.Expression constantListGenerator(jsAst.Expression array) {
     // TODO(floitsch): there is no harm in caching the template.
     return js('${namer.isolateName}.#(#)', [makeConstListProperty, array]);
   }
 
   jsAst.Statement buildMakeConstantList(bool outputContainsConstantList) {
     if (outputContainsConstantList) {
       return js.statement(r'''
@@ skipping 1297 matching lines @@
     for (Element element in compiler.enqueuer.codegen.newlyEnqueuedElements) {
       if (element.isInstanceMember) {
         cachedClassBuilders.remove(element.enclosingClass);
 
         nativeEmitter.cachedBuilders.remove(element.enclosingClass);
 
       }
     }
   }
 }