Add local_num skeleton framework to deref/closure emit calls.
diff --git a/py/scope.h b/py/scope.h
index 1b626c8..9a04c56 100644
--- a/py/scope.h
+++ b/py/scope.h
@@ -7,6 +7,7 @@
 };
 
 typedef struct _id_info_t {
+    // TODO compress this info to make structure smaller in memory
     bool param;
     int kind;
     qstr qstr;