260 tests passing on win64!

[Dan Kegel]

I updated http://wiki.winehq.org/Wine64 with easy
instructions (thanks, Maarten!) for how to build
wine's 64 bit support and try 64 bit pacman
(which works!).

And then I ran "make -k test".

Surprisingly, I got 260 passing tests according to
  find . -name '*.ok' | wc
and only 128 failed tests according to
  grep ok.*Error test.log | wc -l

Ladies and gentlemen, I believe it's time
for a 64 bit winetest.exe to be added to the daily build,
and for 64 bit test data to start showing up at http://test.winehq.org.
That would let us tamp down errors in the test suite
on 64 bits.  (Yeah, I know, gcc with win64 ABI isn't
released yet, and there are problems with exception
handling still, but it still seems worth it...)
- Dan