Add handling of the supposed-to-fail tests. Add an

"ok: <testname>" possibly followed by "(should warn & fail)" to the
output to make it a little more obvious what is being run.

regress/usr.bin/xlint/lint1/Makefile

@@ -1,11 +1,17 @@
-# $NetBSD: Makefile,v 1.2 2006/10/14 23:38:40 dogcow Exp $
+# $NetBSD: Makefile,v 1.3 2006/10/18 00:05:33 he Exp $
 
 TESTS != echo test*.c
+FAIL_TESTS != echo fail-test*.c
 LINT1 = ${DESTDIR}/usr/libexec/lint1
 
 regress:
 .	for i in ${TESTS}
 	${LINT1} -g -S $i /dev/null
+	echo ok: $i
+.	endfor
+.	for i in ${FAIL_TESTS}
+	! ${LINT1} -g -S -w $i /dev/null
+	echo ok: $i '(should warn & fail)'
 .	endfor
 
 .include <bsd.subdir.mk>