expanded support for interfaces with parameters

test/basic/interface_param.v

@@ -0,0 +1,20 @@
+module M(data);
+    parameter A = 1;
+    parameter WIDTH = 32;
+    parameter B = 2;
+    input wire [WIDTH-1:0] data;
+    initial begin
+        $display("A %b", A);
+        $display("I.P %b", data);
+        $display("B %b", B);
+    end
+endmodule
+
+module top;
+    wire [31:0] x_data = 0;
+    wire [9:0] y_data = 0;
+    M #(.WIDTH(32)) a(x_data);
+    M #(.WIDTH(10)) b(y_data);
+    M #(3, 32, 4) c(x_data);
+    M #(5, 10, 6) d(y_data);
+endmodule