Add regression test for classes defined in modules

Check that it is possible to have multiple instances of a module
that declares a class and that the class in each module instance
is a unique type that can have dependencies on module parameters.

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

ivtest/ivltests/sv_class_in_module_decl.v

@@ -0,0 +1,32 @@
+// Check that it is possible to have multiple instances of a module that defines
+// a class and that the actual class types can have different implementations
+// based on module parameters.
+
+module M #(
+  parameter X = 0
+);
+
+  class C;
+    function int f;
+      return X;
+    endfunction
+  endclass
+
+  C c = new;
+
+endmodule
+
+module test;
+
+  M #(10) m1();
+  M #(20) m2();
+
+  initial begin
+    if (m1.c.f() == 10 && m2.c.f() == 20) begin
+      $display("PASSED");
+    end else begin
+      $display("FAILED");
+    end
+  end
+
+endmodule

ivtest/regress-sv.list

@@ -458,6 +458,7 @@ sv_class_empty_item	normal,-g2009		ivltests
 sv_class_extends_scoped	normal,-g2009		ivltests
 sv_class_localparam	normal,-g2009		ivltests
 sv_class_new_init	normal,-g2009		ivltests
+sv_class_in_module_decl	normal,-g2009		ivltests
 sv_darray1		normal,-g2009		ivltests
 sv_darray2		normal,-g2009		ivltests
 sv_darray3		normal,-g2009		ivltests

ivtest/regress-vlog95.list

@@ -372,6 +372,7 @@ sv_class_empty_item	CE,-g2009		ivltests
 sv_class_extends_scoped	CE,-g2009		ivltests
 sv_class_localparam	CE,-g2009		ivltests
 sv_class_new_init	CE,-g2009		ivltests
+sv_class_in_module_decl	CE,-g2009		ivltests
 sv_end_label		CE,-g2009		ivltests  # Also generate
 sv_foreach2		CE,-g2009,-pallowsigned=1	ivltests
 sv_foreach3		CE,-g2009		ivltests