loplugin:cstylecast (clang-cl, manual fix of conditional code)

Change-Id: I7d9c935897107fd0c8471f472234d789e9b8c2da
Reviewed-on: https://gerrit.libreoffice.org/48315Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

include/rtl/byteseq.h

@@ -152,9 +152,10 @@ enum __ByteSequence_NoAcquire
     */
     BYTESEQ_NOACQUIRE =
 #if defined _MSC_VER
-        (int)
-#endif
+        int(0xcafebabe)
+#else
         0xcafebabe
+#endif
 };
 
 /** C++ class representing a SAL byte sequence.