Description :Irving Reid (No longer working on Firefox) 2011-11-08 11:14:14 PST

Thunderbird has many IDL definitions of pseudo-enums, basically an IDL interface that only declares a bunch of constants. Because we never create an instance of the IDL object, it doesn't need any of the normal nsISupports infrastructure.

xpcom prints warnings about all of these, like:

warning: interface 'nsMsgPriority' not derived from nsISupports, /Users/ireid/tbird/comm-central/mailnews/base/public/MailNewsTypes2.idl line 52:0
interface nsMsgPriority {
^

Based on a conversation on irc #developers, this warning doesn't add much value and can be removed.