Serialize scope information at point-of-interest.

dart/sdk/lib/_internal/compiler/implementation/scanner/listener.dart

Index: dart/sdk/lib/_internal/compiler/implementation/scanner/listener.dart
diff --git a/dart/sdk/lib/_internal/compiler/implementation/scanner/listener.dart b/dart/sdk/lib/_internal/compiler/implementation/scanner/listener.dart
index 4d4ad081ce433ca8629f140cc43ef882013e8d61..e76413f0137596c8698414e11d50c3a10503f3db 100644
--- a/dart/sdk/lib/_internal/compiler/implementation/scanner/listener.dart
+++ b/dart/sdk/lib/_internal/compiler/implementation/scanner/listener.dart
@@ -2177,6 +2177,9 @@ class NodeListener extends ElementListener {
 }
 
 abstract class PartialElement implements Element {
+  Token get beginToken;
+  Token get endToken;
+
   bool hasParseError = false;
 
   bool get isErroneous => hasParseError;