Add regression test for localparams in classes

Check that localparams and non-overridable parameters can be declared in a
class.

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

ivtest/ivltests/sv_class_localparam.v

@@ -0,0 +1,28 @@
+// Check that it is possible to declare parameters and localparams inside a
+// class. Both declared parameters that can not be overridden.
+
+module test;
+
+class C;
+  // `parameter` is also declaring a local parameter inside a class
+  parameter A = 1;
+  localparam B = 2;
+
+  function bit test();
+      return A == 1 && B == 2;
+  endfunction
+
+endclass
+
+initial begin
+  C c;
+  c = new;
+
+  if (c.test() && c.A == 1 && c.B == 2) begin
+    $display("PASSED");
+  end else begin
+    $display("FAILED");
+  end
+end
+
+endmodule

ivtest/regress-sv.list

@@ -436,6 +436,7 @@ sv_class22		normal,-g2009		ivltests
 sv_class23		normal,-g2009		ivltests
 sv_class24		normal,-g2009		ivltests
 sv_class_extends_scoped	normal,-g2009		ivltests
+sv_class_localparam	normal,-g2009		ivltests
 sv_class_new_init	normal,-g2009		ivltests
 sv_darray1		normal,-g2009		ivltests
 sv_darray2		normal,-g2009		ivltests

ivtest/regress-vlog95.list

@@ -364,6 +364,7 @@ sv_class22		CE,-g2009		ivltests
 sv_class23		CE,-g2009		ivltests
 sv_class24		CE,-g2009		ivltests
 sv_class_extends_scoped	CE,-g2009		ivltests
+sv_class_localparam	CE,-g2009		ivltests
 sv_class_new_init	CE,-g2009		ivltests
 sv_end_label		CE,-g2009		ivltests  # Also generate
 sv_foreach2		CE,-g2009,-pallowsigned=1	ivltests