Support annotations on assignment and postfix operations

tests/compiler/dart2js/inference/data/list.dart

Index: tests/compiler/dart2js/inference/data/list.dart
diff --git a/tests/compiler/dart2js/inference/data/list.dart b/tests/compiler/dart2js/inference/data/list.dart
index ba2e6d3b839622db771b2d71344e2ccfdccf7a8a..1ab850bbadc61d0882d6593b80016376a3e78cb0 100644
--- a/tests/compiler/dart2js/inference/data/list.dart
+++ b/tests/compiler/dart2js/inference/data/list.dart
@@ -2,7 +2,7 @@
 // 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.
 
-/*main:[null]*/
+/*element: main:[null]*/
 main() {
   emptyList();
   nullList();
@@ -10,14 +10,14 @@ main() {
   constNullList();
 }
 
-/*emptyList:Container mask: [empty] length: 0 type: [exact=JSExtendableArray]*/
+/*element: emptyList:Container mask: [empty] length: 0 type: [exact=JSExtendableArray]*/
 emptyList() => [];
 
-/*constList:Container mask: [empty] length: 0 type: [exact=JSUnmodifiableArray]*/
+/*element: constList:Container mask: [empty] length: 0 type: [exact=JSUnmodifiableArray]*/
 constList() => const [];
 
-/*nullList:Container mask: [null] length: 1 type: [exact=JSExtendableArray]*/
+/*element: nullList:Container mask: [null] length: 1 type: [exact=JSExtendableArray]*/
 nullList() => [null];
 
-/*constNullList:Container mask: [null] length: 1 type: [exact=JSUnmodifiableArray]*/
+/*element: constNullList:Container mask: [null] length: 1 type: [exact=JSUnmodifiableArray]*/
 constNullList() => const [null];