dart2js cps: Fix codegen for foreign statements.

pkg/compiler/lib/src/cps_ir/cps_ir_tracer.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.ir_tracer;
 
 import 'dart:async' show EventSink;
 import 'cps_ir_nodes.dart' as cps_ir hide Function;
 import '../tracer.dart';
 
@@ skipping 353 matching lines @@
     String args = node.arguments.map(formatReference).join(', ');
     return 'ApplyBuiltinOperator $operator ($args)';
   }
 
   @override
   visitForeignCode(cps_ir.ForeignCode node) {
     String id = names.name(node);
     String arguments = node.arguments.map(formatReference).join(', ');
     String continuation = node.continuation == null ? ''
         : ' ${formatReference(node.continuation)}';
-    printStmt(id, "ForeignCode ${node.type} ${node.codeTemplate} $arguments"
-        "$continuation");
+    printStmt(id, "ForeignCode ${node.type} ${node.codeTemplate.source} "
+        "$arguments $continuation");
   }
 }
 
 /**
  * Invents (and remembers) names for Continuations, Parameters, etc.
  * The names must match the conventions used by IR Hydra, e.g.
  * Continuations and Functions must have names of form B### since they
  * are visualized as basic blocks.
  */
 class Names {
@@ skipping 247 matching lines @@
     unexpectedNode(node);
   }
 
   @override
   visitForeignCode(cps_ir.ForeignCode node) {
     if (node.continuation != null) {
       addEdgeToContinuation(node.continuation);
     }
   }
 }