Add a NOTE that alternative VMs should be supported by importlib in a nicer
fashion by factoring out bytecode support.
diff --git a/Lib/importlib/NOTES b/Lib/importlib/NOTES
index 6512d93..f1de623 100644
--- a/Lib/importlib/NOTES
+++ b/Lib/importlib/NOTES
@@ -1,6 +1,10 @@
to do
/////
+* Refactor source/bytecode finder/loader code such that bytecode support is a
+ subclass of source support (makes it nicer for VMs that don't use CPython
+ bytecode).
+
* Implement PEP 302 protocol for loaders (should just be a matter of testing).
+ Built-in.