Big merge from experimental to bleeding edge.

sdk/lib/_internal/compiler/implementation/mirrors/mirrors.dart

 // Copyright (c) 2012, 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 mirrors;
 
+import 'dart:async';
 import 'dart:io';
 import 'dart:uri';
 
 // TODO(rnystrom): Use "package:" URL (#4968).
 import 'dart2js_mirror.dart';
 
 /**
  * [Compilation] encapsulates the compilation of a program.
  */
 abstract class Compilation {
@@ skipping 170 matching lines @@
    *
    * If you access [reflectee] when [hasReflectee] is false, an
    * exception is thrown.
    */
   get reflectee;
 }
 
 /**
  * Specialized [InstanceMirror] used for reflection on constant lists.
  */
-abstract class ListInstanceMirror
-    implements InstanceMirror, Sequence<Future<InstanceMirror>> {
-
+abstract class ListInstanceMirror implements InstanceMirror {
+  Future<InstanceMirror> operator[](int index);
+  int get length;
 }
 
 /**
  * Specialized [InstanceMirror] used for reflection on constant maps.
  */
 abstract class MapInstanceMirror implements InstanceMirror {
   /**
    * Returns a collection containing all the keys in the map.
    */
   Collection<String> get keys;
@@ skipping 500 matching lines @@
   String get sourceText;
 }
 
 /**
  * Class used for encoding dartdoc comments as metadata annotations.
  */
 class DartdocComment {
   final String text;
 
   const DartdocComment(this.text);
-}
+}