[modules] Minor refactorings in scopes and scopeinfos.

src/parsing/parser-base.h

Index: src/parsing/parser-base.h
diff --git a/src/parsing/parser-base.h b/src/parsing/parser-base.h
index 7712fd3dc4539ae5a7d88608b4b9b0e080e4cd18..c091beb92952fa43dd56796a9f4dcccacaa5399e 100644
--- a/src/parsing/parser-base.h
+++ b/src/parsing/parser-base.h
@@ -650,7 +650,7 @@ class ParserBase : public ParserBaseTraits<Impl> {
   }
 
   ModuleScope* NewModuleScope(DeclarationScope* parent) const {
-    return new (zone()) ModuleScope(zone(), parent, ast_value_factory());
+    return new (zone()) ModuleScope(parent, ast_value_factory());
   }
 
   DeclarationScope* NewEvalScope(Scope* parent) const {