implement exports, fixes #141

tool/input_sdk/private/js_mirrors.dart

 // Copyright (c) 2015, 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 dart._js_mirrors;
 
 import 'dart:collection';
 import 'dart:mirrors';
 import 'dart:_foreign_helper' show JS;
 import 'dart:_internal' as _internal;
@@ skipping 90 matching lines @@
     // TODO(vsm): This is only populating the default constructor right now.
     _declarations = new Map<Symbol, MethodMirror>();
     _declarations[simpleName] = new JsMethodMirror._(this, _cls);
   }
 
   InstanceMirror newInstance(Symbol constructorName, List args,
       [Map<Symbol, dynamic> namedArgs]) {
     // TODO(vsm): Support named constructors and named arguments.
     assert(getName(constructorName) == "");
     assert(namedArgs == null || namedArgs.isEmpty);
-    var instance = JS('', '#.instantiate(#, #)', _dart, _cls, args);
+    var instance = JS('', 'new #(...#)', _cls, args);
     return new JsInstanceMirror._(instance);
   }
 }
 
 class JsTypeMirror implements TypeMirror {
   final Type reflectedType;
 
   JsTypeMirror._(this.reflectedType);
 }
 
@@ skipping 41 matching lines @@
     for (var i = 0; i < opts.length; ++i) {
       var type = opts[i];
       // TODO(vsm): Recover the param name.
       var param = new JsParameterMirror._('', type);
       params[i + args.length] = param;
     }
 
     return params;
   }
 }