Fixes to patch files necessary to use the analyzer

runtime/lib/expando_patch.dart

Index: runtime/lib/expando_patch.dart
diff --git a/runtime/lib/expando_patch.dart b/runtime/lib/expando_patch.dart
index ac5f706e934492908c266082852dfd0916baac53..af55a4dc95325b574ba8d546b3e6c844bf606242 100644
--- a/runtime/lib/expando_patch.dart
+++ b/runtime/lib/expando_patch.dart
@@ -3,8 +3,9 @@
 // BSD-style license that can be found in the LICENSE file.
 
 @patch class Expando<T> {
-  @patch Expando([String this.name])
-      : _data = new List(_minSize),
+  @patch Expando([String name])
+      : name = name,
+        _data = new List(_minSize),
         _used = 0;
 
   static const _minSize = 8;