anchor.diff:        jsAst.PropertyAccess property =
             js[isolateProperties][name];
   
  -      buffer.add(jsAst.prettyPrint(property.assign(function).toStatement(),
  -                                   compiler));
  +      buffer.add(jsAst.prettyPrint(property.assign(function), compiler));
  +      buffer.add(N);
       }
     }
   
  
positive.code:       }
        jsAst.Expression init = js[isolateProperties][name].assign(
            constantInitializerExpression(constant));
        buffer.add(jsAst.prettyPrint(init.toStatement(), compiler));
      }
    }
  
  
negative.code:       jsAst.Expression init =
            js[classesCollector][mangledName].assign(
                boundClosureBuilder.toObjectInitializer());
        boundClosureBuffer.add(jsAst.prettyPrint(init, compiler));
        boundClosureBuffer.add("$N");
  
        closureClass = namer.isolateAccess(closureClassElement);
  
  