no more indexes - clean up API

[Alan Coopersmith]

On 05/15/12 02:10 PM, Adam Jackson wrote:
> There's a lot of cleanup material if anyone really wanted to go after it after
> this, 4/19 for example I think we could drop FreeScreen from the ScrnInfoRec
> entirely with only modest driver fixups.

Not for Dave's series, but I've always dreamed of having the Block/Wakeup
and related API's in WaitForSomething redefined to not be so tightly tied
to select() and its long bit-per-possible-fd bitmasks, so we could maybe
even move to poll() or something even more fancy someday.

-- 
	-Alan Coopersmith-              alan.coopersmith at oracle.com
	 Oracle Solaris Engineering - http://blogs.oracle.com/alanc