GCC 4.3 branch created, 4.4 opens for stage1

[Paolo Bonzini]

> PR34950		- Jason/Mark, could you help with this?  It is 4.2/4.3
> 		  regression, so perhaps doesn't need to hold the rc
> PR35218		- I believe the latest patch worked for the tester,
> 		  so we now have a patch and just need an approval?
> PR35232		- I'm not sure I'm comfortable with a big reload patch
> 		  this late
> PR35239		- Rask, do you have a patch for this?

I've posted a fix for PR32009, which is 4-5% hit on gcc performance for 
powerpc-darwin.

I'm applying it to mainline in 12 hours (if bootstrap/regtest passes of 
course, but I'm confident); can I apply it on friday to 4.3-branch?

Paolo