[modules] Move MODULE variable back to Scopes, before resolution

src/ast/scopes.h

Index: src/ast/scopes.h
diff --git a/src/ast/scopes.h b/src/ast/scopes.h
index bc147fb19e8b6e2fdbc3e2473291024eee5d13c9..e5e33f3b20eb2b00a2cab55a3ceb1864c9940957 100644
--- a/src/ast/scopes.h
+++ b/src/ast/scopes.h
@@ -862,9 +862,9 @@ class ModuleScope final : public DeclarationScope {
     return module_descriptor_;
   }
 
-  // Set MODULE as VariableLocation for all variables that will live in this
-  // module's export table. Imports are allocated by the parser.
-  void AllocateModuleExports();
+  // Set MODULE as VariableLocation for all variables that will live in a
+  // module's export table.
+  void AllocateModuleVariables();
 
  private:
   ModuleDescriptor* module_descriptor_;