Explicitly specify name of the pipe in the pipe test

[Dmitry Timoshkov]

Hello,

when building Wine tests under Cygwin in the out of the source tree
configuration kernel32/pipe test fails under win2k due to using forward
slashes in the full file name.

Changelog:
    Dmitry Timoshkov <dmitry at codeweavers.com>
    Explicitly specify name of the pipe in the pipe test.

--- cvs/hq/wine/dlls/kernel/tests/pipe.c	Tue May 04 05:05:16 2004
+++ wine/dlls/kernel/tests/pipe.c	Sun May 23 09:20:31 2004
@@ -48,7 +48,7 @@
 #include <wtypes.h>
 #include <winerror.h>
 
-#define PIPENAME "\\\\.\\PiPe\\tests_" __FILE__
+#define PIPENAME "\\\\.\\PiPe\\tests_pipe.c"
 
 #define NB_SERVER_LOOPS 8