Import new NetBSD tests snapshot2023.08.19-b34f66deb02e188104vendor/NetBSD/tests

This change pulls down the code from CVS trunk at the noted git
commit.

Obtained from:  https://github.com/NetBSD/src (b34f66deb02e188104)

3 files changed, 41 insertions, 5 deletions

diff --git a/lib/libc/regex/data/att/README b/lib/libc/regex/data/att/README
index e2ee6f6ef705..86b72eb0479f 100644
--- a/lib/libc/regex/data/att/README
+++ b/lib/libc/regex/data/att/README
@@ -1,4 +1,8 @@
-AT&T test data from: http://www2.research.att.com/~gsf/testregex/
+AT&T test data from:
+    http://www2.research.att.com/~gsf/testregex/
+
+The above link does not exist anymore; a copy of it is maintained at:
+    https://github.com/gburd/testregex
 
 Quoting from the page:
     testregex.c 2004-05-31 is the latest source for the AT&T Research
diff --git a/usr.bin/xlint/lint1/check-expect.lua b/usr.bin/xlint/lint1/check-expect.lua
index dde258973d4f..95ba60267cc8 100644
--- a/usr.bin/xlint/lint1/check-expect.lua
+++ b/usr.bin/xlint/lint1/check-expect.lua
@@ -1,5 +1,5 @@
 #!  /usr/bin/lua
--- $NetBSD: check-expect.lua,v 1.7 2023/07/08 11:03:00 rillig Exp $
+-- $NetBSD: check-expect.lua,v 1.8 2023/08/11 04:27:49 rillig Exp $
 
 --[[
 
@@ -62,7 +62,7 @@ end
 --
 -- example return values:
 --   {
---     ["file.c(18)"] = {"invalid argument 'a'", "invalid argument 'b'"},
+--     ["file.c(18)"] = {"syntax error 'a' [249]", "syntax error 'b' [249]"},
 --     ["file.c(23)"] = {"not a constant expression [123]"},
 --   },
 --   { "file.c(18)", "file.c(23)" }
@@ -132,7 +132,7 @@ local function load_exp(exp_fname)
 
   local messages = {}
   for exp_lineno, line in ipairs(lines) do
-    for location, message in line:gmatch("(%S+%(%d+%)): (.+)$") do
+    for location, message in line:gmatch("(.+%(%d+%)): (.+)$") do
       table.insert(messages, {
         exp_lineno = exp_lineno,
         location = location,
diff --git a/usr.bin/xlint/lint1/msg_255.c b/usr.bin/xlint/lint1/msg_255.c
index bde80cc97e3c..1a7f60f8d7b0 100644
--- a/usr.bin/xlint/lint1/msg_255.c
+++ b/usr.bin/xlint/lint1/msg_255.c
@@ -1,13 +1,45 @@
-/*	$NetBSD: msg_255.c,v 1.5 2023/07/09 11:01:27 rillig Exp $	*/
+/*	$NetBSD: msg_255.c,v 1.6 2023/08/11 04:27:49 rillig Exp $	*/
 # 3 "msg_255.c"
 
 // Test for message: undefined or invalid '#' directive [255]
 
 /* lint1-extra-flags: -X 351 */
 
+/* expect+1: warning: undefined or invalid '#' directive [255] */
+#
+
+/* expect+1: warning: undefined or invalid '#' directive [255] */
+#pragma
+
 #pragma once
 
 /* expect+1: warning: undefined or invalid '#' directive [255] */
 #fatal_error
 
+/* expect+1: warning: undefined or invalid '#' directive [255] */
+#    ident "obsolete"
+
+/* expect+1: warning: undefined or invalid '#' directive [255] */
+#1
+
+// Sets the line number of the current file.
+# 2
+
+// Switch back to the main file.
+# 30 "msg_255.c"
+
+/* expect+1: warning: undefined or invalid '#' directive [255] */
+# 3/
+
+/* expect+1: warning: undefined or invalid '#' directive [255] */
+# 4 /
+
+/* expect+1: warning: undefined or invalid '#' directive [255] */
+# 5 "unfinished
+
+// An empty string means standard input; tabs may be used for spacing.
+#	6	""
+
+# 44 "msg_255.c"
+
 int dummy;