Add regression test for default member values in packed structs

Default member values are not allowed in packed structs. Check that an
error is reported for them.

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

ivtest/ivltests/struct_packed_member_def.v

@@ -0,0 +1,13 @@
+// Check that an error is reported when specifing a default member value for a
+// packed struct.
+
+module test;
+  struct packed {
+    // This should fail, default member value is not allowed for packed struct
+    integer x = 10;
+  } s;
+
+  initial begin
+    $display("FAILED");
+  end
+endmodule

ivtest/regress-sv.list

@@ -485,6 +485,7 @@ struct_member_signed	normal,-g2009		ivltests
 struct_packed_array	normal,-g2009		ivltests
 struct_packed_array2	normal,-g2009		ivltests
 struct_packed_darray_fail CE,-g2009		ivltests
+struct_packed_member_def	CE,-g2009	ivltests
 struct_packed_queue_fail CE,-g2009		ivltests
 struct_packed_sysfunct	normal,-g2009		ivltests
 struct_packed_sysfunct2	normal,-g2009		ivltests