[libstdc++] Rename standard headers

[Gerald Pfeifer]

I do not think that this kind of change is appropriate for the current
development stage of GCC.

The fact that this patch managed to break even the most trivial C++
programs on my i386-unknown-freebsd4.4 systems is a strong indication:

  % cd $GCC ; find . -name 'vector*'
  ./include/g++-v3/backward/vector.h

That is, <vector> is missing. And, yes, I have

  2002-01-11  Phil Edwards  <pme@gcc.gnu.org>

        * include/Makefile.am, include/Makefile.in (stamp-std):  Fix typo from
        previous commit.

in my source tree, and I have tried two consecutive builds to rule out
intermittent CVS inconsistencies.

Gerald
-- 
Gerald "Jerry" pfeifer@dbai.tuwien.ac.at http://www.dbai.tuwien.ac.at/~pfeifer/