anchor.diff:    }
   
     String getJsConstructor(ClassElement element) {
  -    return namer.isolatePropertiesAccess(element);
  +    return namer.isolateAccess(element);
     }
   
     jsAst.Expression visitMap(MapConstant constant) {
  
positive.code: class ConstantReferenceEmitter implements ConstantVisitor<jsAst.Expression> {
    final Compiler compiler;
    final Namer namer;
    bool inIsolateInitializationContext = false;
  
    ConstantReferenceEmitter(this.compiler, this.namer);
  
    jsAst.Expression generate(Constant constant) {
      inIsolateInitializationContext = false;
      return _visit(constant);
    }
  
    jsAst.Expression generateInInitializationContext(Constant constant) {
      inIsolateInitializationContext = true;
      return _visit(constant);
    }
  
  
negative.code:   }
  
    jsAst.Expression visitFunction(FunctionConstant constant) {
      return new jsAst.VariableUse(namer.isolateAccess(constant.element));
    }
  
    jsAst.Expression visitNull(NullConstant constant) {
  