dxdiagn: Add dxdiagn.dll to DxDiag_DirectXFiles container. Create fake dll for it as well.
diff --git a/tools/wine.inf.in b/tools/wine.inf.in
index a95f1a8..5b1d990 100644
--- a/tools/wine.inf.in
+++ b/tools/wine.inf.in
@@ -2262,6 +2262,7 @@
 11,,dosx.exe
 11,,dsound.dll
 11,,dsound.vxd
+11,,dxdiagn.dll
 11,,gdi32.dll
 11,,glu32.dll
 11,,hal.dll