Reset the symbol baseline files?

[Loren James Rittle]

Before gcc 4.0 ships, are we going to reset the baselines back to zero?

And/or, does this look OK for a port with gcc 4.0 ~RC2?  -Loren

                === libstdc++-v3 check-abi Summary ===

# of added symbols:              351
# of missing symbols:            286
# of incompatible symbols:       286