Add regression tests for invalid class new

Check that using a class new operator on a variable that is not of a class
type results in an error.

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

ivtest/ivltests/sv_class_new_fail1.v

@@ -0,0 +1,13 @@
+// Check that using the class new operator on a non-class variable results in an
+// error.
+
+module test;
+
+  int i;
+
+  initial begin
+    i = new;
+    $display("FAILED");
+  end
+
+endmodule

ivtest/ivltests/sv_class_new_fail2.v

@@ -0,0 +1,13 @@
+// Check that using the class new operator on a dynamic array variable results
+// in an error.
+
+module test;
+
+  int i[];
+
+  initial begin
+    i = new;
+    $display("FAILED");
+  end
+
+endmodule

ivtest/regress-sv.list

@@ -499,6 +499,8 @@ sv_class_constructor_fail   CE,-g2009		ivltests
 sv_class_empty_item	normal,-g2009		ivltests
 sv_class_extends_scoped	normal,-g2009		ivltests
 sv_class_localparam	normal,-g2009		ivltests
+sv_class_new_fail1	CE,-g2009		ivltests
+sv_class_new_fail2	CE,-g2009		ivltests
 sv_class_new_init	normal,-g2009		ivltests
 sv_class_in_module_decl	normal,-g2009		ivltests
 sv_class_method_signed1	normal,-g2009		ivltests