[debugger] ScopeIterator should unwrap debug-evaluate contexts.

src/debug/debug-scopes.h

Index: src/debug/debug-scopes.h
diff --git a/src/debug/debug-scopes.h b/src/debug/debug-scopes.h
index f3b79b9645dee20707d1fe449dff8d36576e44d5..4e95fc4ba4c2d287ab465e0219ca598068e066ac 100644
--- a/src/debug/debug-scopes.h
+++ b/src/debug/debug-scopes.h
@@ -110,12 +110,15 @@ class ScopeIterator {
 
   void CollectNonLocals(Scope* scope);
 
+  void UnwrapEvaluationContext();
+
   MUST_USE_RESULT MaybeHandle<JSObject> MaterializeScriptScope();
   MUST_USE_RESULT MaybeHandle<JSObject> MaterializeLocalScope();
   MUST_USE_RESULT MaybeHandle<JSObject> MaterializeModuleScope();
   Handle<JSObject> MaterializeClosure();
   Handle<JSObject> MaterializeCatchScope();
   Handle<JSObject> MaterializeBlockScope();
+  Handle<JSObject> WithContextExtension();
 
   bool SetLocalVariableValue(Handle<String> variable_name,
                              Handle<Object> new_value);