Add local variable declaration token position to service protocol

runtime/vm/object.h

Index: runtime/vm/object.h
diff --git a/runtime/vm/object.h b/runtime/vm/object.h
index 82f3ef7b990bdc2b6ef496bd74688da7026d3bf0..e4552ad734847c71abbb6638975ec2b8724ecfac 100644
--- a/runtime/vm/object.h
+++ b/runtime/vm/object.h
@@ -5122,6 +5122,10 @@ class ContextScope : public Object {
   TokenPosition TokenIndexAt(intptr_t scope_index) const;
   void SetTokenIndexAt(intptr_t scope_index, TokenPosition token_pos) const;
 
+  TokenPosition DeclarationTokenIndexAt(intptr_t scope_index) const;
+  void SetDeclarationTokenIndexAt(intptr_t scope_index,
+                                  TokenPosition declaration_token_pos) const;
+
   RawString* NameAt(intptr_t scope_index) const;
   void SetNameAt(intptr_t scope_index, const String& name) const;