made tests in basic suite yosys-friendly

- multipack
- multipack_port
- package_order
- struct_array

test/basic/struct_array.v

@@ -1,12 +1,12 @@
 module Unpacker(in, select, a, b, c);
     parameter WIDTH = 8;
-    input wire [WIDTH-1:0][6:0] in;
+    input wire [WIDTH*7-1:0] in;
     input wire [$clog2(WIDTH)-1:0] select;
     output wire a;
     output wire [3:0] b;
     output wire [1:0] c;
     wire [6:0] p;
-    assign p = in[select];
+    assign p = in[select*7+:7];
     assign a = p[6:6];
     assign b = p[5:2];
     assign c = p[1:0];