fix compilation of winmm tests

[Huw D M Davies]

Fix compilation of winmm tests

Index: dlls/winmm/tests/mixer.c
===================================================================
RCS file: /home/wine/wine/dlls/winmm/tests/mixer.c,v
retrieving revision 1.1
diff -u -r1.1 mixer.c
--- dlls/winmm/tests/mixer.c	9 Aug 2004 18:46:26 -0000	1.1
+++ dlls/winmm/tests/mixer.c	9 Aug 2004 19:57:09 -0000
@@ -24,14 +24,15 @@
  * add interactive tests
  */
 
+
+#define NONAMELESSSTRUCT
+#define NONAMELESSUNION
 #include <windows.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
 
-#define NONAMELESSSTRUCT
-#define NONAMELESSUNION
 #include "wine/test.h"
 #include "windef.h"
 #include "winbase.h"