Reject local module declarations.

src/parser.h

Index: src/parser.h
diff --git a/src/parser.h b/src/parser.h
index 93dd03a63b201d986e8d9c09cdc6342653619daf..46d4ec86ef8ba7650e153aa719315a966d634faa 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -590,8 +590,8 @@ class Parser {
   // which is set to false if parsing failed; it is unchanged otherwise.
   // By making the 'exception handling' explicit, we are forced to check
   // for failure at the call sites.
-  void* ParseSourceElements(ZoneList<Statement*>* processor,
-                            int end_token, bool is_eval, bool* ok);
+  void* ParseSourceElements(ZoneList<Statement*>* processor, int end_token,
+                            bool is_eval, bool is_global, bool* ok);
   Statement* ParseModuleElement(ZoneStringList* labels, bool* ok);
   Statement* ParseModuleDeclaration(ZoneStringList* names, bool* ok);
   Module* ParseModule(bool* ok);