Add regression tests for `begin_keywords` versions

Check that each valid `begin_keywords` selector is accepted. Only check
that the selector itself is accepted, in these tests there is no check if
the correct keywords are actually accepted or rejected since that would get
pretty exhaustive.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>

ivtest/ivltests/begin_keywords_1364_1995.v

@@ -0,0 +1,9 @@
+// Check that `begin_keywords accepts the 1364-1995 keyword set.
+
+`begin_keywords "1364-1995"
+module test;
+  initial begin
+    $display("PASSED");
+  end
+endmodule
+`end_keywords

ivtest/ivltests/begin_keywords_1364_2001.v

@@ -0,0 +1,9 @@
+// Check that `begin_keywords accepts the 1364-2001 keyword set.
+
+`begin_keywords "1364-2001"
+module test;
+  initial begin
+    $display("PASSED");
+  end
+endmodule
+`end_keywords

ivtest/ivltests/begin_keywords_1364_2001_noconfig.v

@@ -0,0 +1,9 @@
+// Check that `begin_keywords accepts the 1364-2001-noconfig keyword set.
+
+`begin_keywords "1364-2001-noconfig"
+module test;
+  initial begin
+    $display("PASSED");
+  end
+endmodule
+`end_keywords

ivtest/ivltests/begin_keywords_1364_2005.v

@@ -0,0 +1,9 @@
+// Check that `begin_keywords accepts the 1364-2005 keyword set.
+
+`begin_keywords "1364-2005"
+module test;
+  initial begin
+    $display("PASSED");
+  end
+endmodule
+`end_keywords

ivtest/ivltests/begin_keywords_1800_2005.v

@@ -0,0 +1,9 @@
+// Check that `begin_keywords accepts the 1800-2005 keyword set.
+
+`begin_keywords "1800-2005"
+module test;
+  initial begin
+    $display("PASSED");
+  end
+endmodule
+`end_keywords

ivtest/ivltests/begin_keywords_1800_2009.v

@@ -0,0 +1,9 @@
+// Check that `begin_keywords accepts the 1800-2009 keyword set.
+
+`begin_keywords "1800-2009"
+module test;
+  initial begin
+    $display("PASSED");
+  end
+endmodule
+`end_keywords

ivtest/ivltests/begin_keywords_1800_2012.v

@@ -0,0 +1,9 @@
+// Check that `begin_keywords accepts the 1800-2012 keyword set.
+
+`begin_keywords "1800-2012"
+module test;
+  initial begin
+    $display("PASSED");
+  end
+endmodule
+`end_keywords

ivtest/ivltests/begin_keywords_1800_2017.v

@@ -0,0 +1,9 @@
+// Check that `begin_keywords accepts the 1800-2017 keyword set.
+
+`begin_keywords "1800-2017"
+module test;
+  initial begin
+    $display("PASSED");
+  end
+endmodule
+`end_keywords

ivtest/ivltests/begin_keywords_1800_2023.v

@@ -0,0 +1,9 @@
+// Check that `begin_keywords accepts the 1800-2023 keyword set.
+
+`begin_keywords "1800-2023"
+module test;
+  initial begin
+    $display("PASSED");
+  end
+endmodule
+`end_keywords

ivtest/ivltests/begin_keywords_vams_2_3.v

@@ -0,0 +1,9 @@
+// Check that `begin_keywords accepts the VAMS-2.3 keyword set.
+
+`begin_keywords "VAMS-2.3"
+module test;
+  initial begin
+    $display("PASSED");
+  end
+endmodule
+`end_keywords

ivtest/regress-vvp.list

@@ -14,6 +14,16 @@ array_slice_concat		vvp_tests/array_slice_concat.json
 automatic_error11		vvp_tests/automatic_error11.json
 automatic_error12		vvp_tests/automatic_error12.json
 automatic_error13		vvp_tests/automatic_error13.json
+begin_keywords_1364_1995	vvp_tests/begin_keywords_1364_1995.json
+begin_keywords_1364_2001	vvp_tests/begin_keywords_1364_2001.json
+begin_keywords_1364_2001_noconfig	vvp_tests/begin_keywords_1364_2001_noconfig.json
+begin_keywords_1364_2005	vvp_tests/begin_keywords_1364_2005.json
+begin_keywords_1800_2005	vvp_tests/begin_keywords_1800_2005.json
+begin_keywords_1800_2009	vvp_tests/begin_keywords_1800_2009.json
+begin_keywords_1800_2012	vvp_tests/begin_keywords_1800_2012.json
+begin_keywords_1800_2017	vvp_tests/begin_keywords_1800_2017.json
+begin_keywords_1800_2023	vvp_tests/begin_keywords_1800_2023.json
+begin_keywords_vams_2_3	vvp_tests/begin_keywords_vams_2_3.json
 bits4				vvp_tests/bits4.json
 bitsel11			vvp_tests/bitsel11.json
 br_gh13a			vvp_tests/br_gh13a.json

ivtest/vvp_tests/begin_keywords_1364_1995.json

@@ -0,0 +1,5 @@
+{
+    "type"          : "normal",
+    "source"        : "begin_keywords_1364_1995.v",
+    "iverilog-args" : [ "-g2005-sv" ]
+}

ivtest/vvp_tests/begin_keywords_1364_2001.json

@@ -0,0 +1,5 @@
+{
+    "type"          : "normal",
+    "source"        : "begin_keywords_1364_2001.v",
+    "iverilog-args" : [ "-g2005-sv" ]
+}

ivtest/vvp_tests/begin_keywords_1364_2001_noconfig.json

@@ -0,0 +1,5 @@
+{
+    "type"          : "normal",
+    "source"        : "begin_keywords_1364_2001_noconfig.v",
+    "iverilog-args" : [ "-g2005-sv" ]
+}

ivtest/vvp_tests/begin_keywords_1364_2005.json

@@ -0,0 +1,5 @@
+{
+    "type"          : "normal",
+    "source"        : "begin_keywords_1364_2005.v",
+    "iverilog-args" : [ "-g2005-sv" ]
+}

ivtest/vvp_tests/begin_keywords_1800_2005.json

@@ -0,0 +1,5 @@
+{
+    "type"          : "normal",
+    "source"        : "begin_keywords_1800_2005.v",
+    "iverilog-args" : [ "-g2005-sv" ]
+}

ivtest/vvp_tests/begin_keywords_1800_2009.json

@@ -0,0 +1,5 @@
+{
+    "type"          : "normal",
+    "source"        : "begin_keywords_1800_2009.v",
+    "iverilog-args" : [ "-g2009" ]
+}

ivtest/vvp_tests/begin_keywords_1800_2012.json

@@ -0,0 +1,5 @@
+{
+    "type"          : "normal",
+    "source"        : "begin_keywords_1800_2012.v",
+    "iverilog-args" : [ "-g2012" ]
+}

ivtest/vvp_tests/begin_keywords_1800_2017.json

@@ -0,0 +1,5 @@
+{
+    "type"          : "normal",
+    "source"        : "begin_keywords_1800_2017.v",
+    "iverilog-args" : [ "-g2017" ]
+}

ivtest/vvp_tests/begin_keywords_1800_2023.json

@@ -0,0 +1,5 @@
+{
+    "type"          : "normal",
+    "source"        : "begin_keywords_1800_2023.v",
+    "iverilog-args" : [ "-g2023" ]
+}

ivtest/vvp_tests/begin_keywords_vams_2_3.json

@@ -0,0 +1,5 @@
+{
+    "type"          : "normal",
+    "source"        : "begin_keywords_vams_2_3.v",
+    "iverilog-args" : [ "-g2005-sv", "-gverilog-ams" ]
+}