[PATCH, libstdc++] Update alpha-linux-gnu baseline_symbols.txt

[Benjamin Kosnik]

> For the record, mips64-linux is also failing in both David's and in
> my testing (I haven't looked at why):
> 
> http://gcc.gnu.org/ml/gcc-testresults/2009-01/msg02925.html
> http://gcc.gnu.org/ml/gcc-testresults/2009-01/msg02909.html

Probably due to mips baselines being selected that are not mips64?
That's my guess. See abi_baseline_pair in configure.host. Might need to
be tweaked or adjusted.

But I don't know for sure. This may be some other woe-inducing item.
Please send me the compressed libstdc++.log file for these runs (it
contains verbose data on abi_check) and I'll see what I can do.


thanks,
benjamin