I think the key issue is your: > I believe they should be able to use both, as long as there aren't any > real conflicts, *without* spurious warnings... >
As Jeff said, the problem is "aren't any real conflicts" is not possible to determine in all cases, and can be costly in others. And IIUC its not possible to know ahead of time if it can be determined. So because its not practically possible to protect against problematic situations, Julia plays it safe and complains about all situations. Cheers Lex
