js_ast: implement rest/spread parsing

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 23 matching lines @@
 
 dynamic _dload(obj, String name) {
   return JS('', '#.dload(#, #)', _dart, obj, name);
 }
 
 void _dput(obj, String name, val) {
   JS('', '#.dput(#, #, #)', _dart, obj, name, val);
 }
 
 dynamic _dsend(obj, String name, List args) {
-  return JS('', '#.dsendArray(#, #, #)', _dart, obj, name, args);
+  return JS('', '#.dsend(#, #, ...#)', _dart, obj, name, args);
 }
 
 class JsInstanceMirror implements InstanceMirror {
   final Object reflectee;
 
   JsInstanceMirror._(this.reflectee);
 
   InstanceMirror getField(Symbol symbol) {
     var name = getName(symbol);
     var field = _dload(reflectee, name);
@@ skipping 112 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;
   }
 }