Teach ModuleDescriptor about basic local exports

src/parser.h

Index: src/parser.h
diff --git a/src/parser.h b/src/parser.h
index ff36fe90e0b0cd1c9a5c44f6086b7dc6ba069e33..c8fcdd96e39e1334057b742a5c2a415122a42f34 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -711,7 +711,8 @@ class Parser : public ParserBase<ParserTraits> {
   Statement* ParseImportDeclaration(bool* ok);
   Statement* ParseExportDeclaration(bool* ok);
   Statement* ParseExportDefault(bool* ok);
-  void* ParseExportClause(ZoneList<const AstRawString*>* names,
+  void* ParseExportClause(ZoneList<const AstRawString*>* export_names,
+                          ZoneList<const AstRawString*>* local_names,
                           Scanner::Location* reserved_loc, bool* ok);
   void* ParseNamedImports(ZoneList<const AstRawString*>* names, bool* ok);
   Statement* ParseStatement(ZoneList<const AstRawString*>* labels, bool* ok);