[parser] fix null-dereference in DoExpression rewriting

src/parsing/parser.h

Index: src/parsing/parser.h
diff --git a/src/parsing/parser.h b/src/parsing/parser.h
index 5b456c4a1f7d5a08e50cac53c75fd5fca248353a..cb9809ae99200b0139bf4999fe540fde26530b09 100644
--- a/src/parsing/parser.h
+++ b/src/parsing/parser.h
@@ -735,6 +735,8 @@ class Parser : public ParserBase<ParserTraits> {
                                    bool* ok);
   Statement* ParseNativeDeclaration(bool* ok);
   Block* ParseBlock(ZoneList<const AstRawString*>* labels, bool* ok);
+  Block* ParseBlock(ZoneList<const AstRawString*>* labels,
+                    bool finalize_block_scope, bool* ok);
   Block* ParseVariableStatement(VariableDeclarationContext var_context,
                                 ZoneList<const AstRawString*>* names,
                                 bool* ok);