Tests: Unsupported test for bug1627.

Signed-off-by: Wilson Snyder <wsnyder@wsnyder.org>

test_regress/t/t_unpacked_concat_bad.out

@@ -0,0 +1,17 @@
+%Warning-WIDTHCONCAT: t/t_typedef_logic_in_concat_bad.v:12: Unsized numbers/parameters not allowed in replications.
+                                                          : ... In instance t
+  typedef logic [15:0] count_t;
+          ^~~~~
+                      ... Use "/* verilator lint_off WIDTHCONCAT */" and lint_on around source to disable this message.
+%Error: Exiting due to 1 warning(s)
+
+# This warning message is pretty misleading. Instead of pointing out to the call to $bits() without a cast, it points to the type declaration of the argument to bits. It would be more useful if it looked like this:
+
+%Warning-WIDTHCONCAT: t/t_typedef_logic_in_concat_bad.v:15: Unsized numbers/parameters not allowed in replications.
+                                                      : ... In instance t
+  localparam bit_int_t [1:0] count_bits = {2{$bits(count_t)}};
+                                              ^~~~~
+                      ... Use "/* verilator lint_off WIDTHCONCAT */" and lint_on around source to disable this message.
+%Error: Exiting due to 1 warning(s)
+
+

test_regress/t/t_unpacked_concat_bad.pl

@@ -0,0 +1,20 @@
+#!/usr/bin/perl
+if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# Copyright 2019 by Wilson Snyder. This program is free software; you can
+# redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
+
+scenarios(linter => 1);
+
+$Self->{vlt_all} and unsupported("Verilator unsupported, bug1627");
+
+lint(
+    fails => 1,
+    expect_filename => $Self->{golden_filename},
+    );
+
+ok(1);
+1;

test_regress/t/t_unpacked_concat_bad.v

@@ -0,0 +1,24 @@
+// DESCRIPTION: Verilator: Verilog Test module
+//
+// This file ONLY is placed into the Public Domain, for any use,
+// without warranty, 2019 by Driss Hafdi
+
+module t (/*AUTOARG*/
+   // Inputs
+   clk
+   );
+
+   input clk;
+
+   typedef logic [15:0] count_t;
+   typedef bit [31:0]   bit_int_t;
+
+   localparam bit_int_t [1:0] count_bits = {2{$bits(count_t)}};
+
+   initial begin
+      $write("%d\n", count_bits[0]);
+      $write("%d\n", count_bits[1]);
+      $write("*-* All Finished *-*\n");
+      $finish;
+   end
+endmodule