shell32: Test against the long form of the path.

[Dan Kegel]

This change
http://source.winehq.org/git/wine.git/?a=commit;h=f2aa3259b913d75a273296f2850025cd8bb05f3d
seems to causes a test failure on my wine box, but more importantly,
on several windows boxes as well:

http://test.winehq.org/data/200805221320/2000_aenglish-2k/shell32:shelllink.txt
http://test.winehq.org/data/200805221320/2003_jh-win2k3-vm/shell32:shelllink.txt
http://test.winehq.org/data/200805221320/xp_om/shell32:shelllink.txt

It passes on some systems, go figure:
http://test.winehq.org/data/200805221320/xp_maarten-xp/shell32:shelllink.txt

James, want to revert this one for now?