Currently, the two methods of setting thread names in Windows (SetThreadDescription() and the 0x406D1388 exception) log to different channels.
I think it would be useful for these to both log to the same +threadname channel. My thinking is that this would be similar to +debugstr, in that all messages are human-readable descriptions which would be useful for debugging crashes.
-- v2: ntdll: Use +threadname channel for SetThreadDescription(). ntdll: Use +threadname channel for thread rename exceptions.