Add regression test for invalid net data types

Add regression tests that check that declaring a net of type class, dynamic
array, queue or string result in an error.

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

ivtest/ivltests/net_class_fail.v

@@ -0,0 +1,12 @@
+// Check that declaring a net of a class type results in an error
+
+module test;
+  class C;
+  endclass
+
+  wire C x;
+
+  initial begin
+    $display("FAILED");
+  end
+endmodule

ivtest/ivltests/net_darray_fail.v

@@ -0,0 +1,10 @@
+// Check that declaring a net of a dynamic array type results in an error
+
+module test;
+
+  wire x[];
+
+  initial begin
+    $display("FAILED");
+  end
+endmodule

ivtest/ivltests/net_queue_fail.v

@@ -0,0 +1,10 @@
+// Check that declaring a net of a queue type results in an error
+
+module test;
+
+  wire x[$];
+
+  initial begin
+    $display("FAILED");
+  end
+endmodule

ivtest/ivltests/net_string_fail.v

@@ -0,0 +1,10 @@
+// Check that declaring a net of string type results in an error
+
+module test;
+
+  wire string x;
+
+  initial begin
+    $display("FAILED");
+  end
+endmodule

ivtest/regress-sv.list

@@ -318,6 +318,10 @@ named_begin		normal,-g2009		ivltests
 named_begin_fail	CE,-g2009		ivltests
 named_fork		normal,-g2009		ivltests
 named_fork_fail		CE,-g2009		ivltests
+net_class_fail		CE,-g2005-sv		ivltests
+net_darray_fail		CE,-g2005-sv		ivltests
+net_queue_fail		CE,-g2005-sv		ivltests
+net_string_fail		CE,-g2005-sv		ivltests
 packeda			normal,-g2009		ivltests
 packeda2		normal,-g2009		ivltests
 parameter_in_generate2	CE,-g2005-sv		ivltests