No basic improvements branch for 3.5 - work on tree-ssa

[Arnaud Charlet]

> There's no question of tree-ssa not making 3.5, we would delay
> 3.5 until it does make it as far as I'm concerned.  tree-ssa is the
> only hope I can see that GCC will ever be able to fix a critical failing
> that produces inferior C++ code.  Without it, there's no point to a 3.5
> release.

Let's please keep things in perspective here: there are many other languages
besides C++ in GCC.
Not everyone is using C++, so there can be lots of good reasons for
making a 3.5 release.

Arno