Support serialization of all resolved asts from dart:core

pkg/compiler/lib/src/serialization/equivalence.dart

 // Copyright (c) 2016, 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.
 
 /// Functions for asserting equivalence across serialization.
 
 library dart2js.serialization.equivalence;
 
 import '../common/resolution.dart';
 import '../constants/expressions.dart';
@@ skipping 1205 matching lines @@
         testNodes(node1, node2, 'update', node1.update, node2.update) &&
         testNodes(node1, node2, 'body', node1.body, node2.body);
   }
 
   @override
   bool visitForIn(ForIn node1, ForIn node2) {
     return testNodes(
             node1, node2, 'condition', node1.condition, node2.condition) &&
         testNodes(
             node1, node2, 'expression', node1.expression, node2.expression) &&
-        testNodes(node1, node2, 'body', node1.expression, node2.body) &&
+        testNodes(node1, node2, 'body', node1.body, node2.body) &&
         testNodes(node1, node2, 'declaredIdentifier', node1.declaredIdentifier,
             node2.declaredIdentifier);
   }
 
   @override
   bool visitFunctionDeclaration(
       FunctionDeclaration node1, FunctionDeclaration node2) {
     return testNodes(node1, node2, 'function', node1.function, node2.function);
   }
 
@@ skipping 450 matching lines @@
   @override
   bool visitStatement(Statement node1, Statement node2) {
     throw new UnsupportedError('Unexpected nodes: $node1 <> $node2');
   }
 
   @override
   bool visitStringNode(StringNode node1, StringNode node2) {
     throw new UnsupportedError('Unexpected nodes: $node1 <> $node2');
   }
 }