Type-related fixes

pkg/dev_compiler/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:mirrors';
 import 'dart:_foreign_helper' show JS;
 import 'dart:_internal' as _internal;
 
@@ skipping 129 matching lines @@
   return _toDartMap(sig);
 }
 
 // TODO(vsm): These methods need to validate whether we really have a
 // WrappedType or a raw type that should be wrapped (as opposed to a
 // function).
 dynamic _unwrap(obj) => JS('', '#.unwrapType(#)', _dart, obj);
 
 dynamic _wrap(obj) => JS('', '#.wrapType(#)', _dart, obj);
 
+dynamic _runtimeType(obj) =>
+  _wrap(JS('', '#.getReifiedType(#)', _dart, obj));
+
 _unimplemented(Type t, Invocation i) {
   throw new UnimplementedError('$t.${getName(i.memberName)} unimplemented');
 }
 
 dynamic _toJsMap(Map<Symbol, dynamic> map) {
   var obj = JS('', '{}');
   map.forEach((Symbol key, value) {
     JS('', '#[#] = #', obj, getName(key), value);
   });
   return obj;
@@ skipping 23 matching lines @@
 class JsInstanceMirror extends JsObjectMirror implements InstanceMirror {
 
   // Reflected object
   final reflectee;
   bool get hasReflectee => true;
 
   ClassMirror get type {
     // The spec guarantees that `null` is the singleton instance of the `Null`
     // class.
     if (reflectee == null) return reflectClass(Null);
-    return reflectType(reflectee.runtimeType);
+    return reflectType(_runtimeType(reflectee));
   }
 
   JsInstanceMirror._(this.reflectee);
 
   bool operator==(Object other) {
     return (other is JsInstanceMirror) && identical(reflectee, other.reflectee);
   }
 
   int get hashCode {
     // Avoid hash collisions with the reflectee. This constant is in Smi range
@@ skipping 359 matching lines @@
       // TODO(vsm): Recover the param name.
       var param = new JsParameterMirror._('', _wrap(type), metadata);
       params[i + args.length] = param;
     }
 
     _params = new List.unmodifiable(params);
   }
 
   String toString() => "MethodMirror on '$_name'";
 }