SDK fixes

tool/input_sdk/lib/async/stream.dart

Index: tool/input_sdk/lib/async/stream.dart
diff --git a/tool/input_sdk/lib/async/stream.dart b/tool/input_sdk/lib/async/stream.dart
index c4c2c07fa89db5e559ac7ee9da8e67f023289e08..54f712b99e1d9869629029bcbe26abdf671eb021 100644
--- a/tool/input_sdk/lib/async/stream.dart
+++ b/tool/input_sdk/lib/async/stream.dart
@@ -482,7 +482,8 @@ abstract class Stream<T> {
    * The `streamTransformer` can decide whether it wants to return a
    * broadcast stream or not.
    */
-  Stream transform(StreamTransformer<T, dynamic> streamTransformer) {
+  Stream/*<S>*/ transform/*<S>*/(
+      StreamTransformer<T, dynamic/*=S*/ > streamTransformer) {
     return streamTransformer.bind(this);
   }