message: Update tf_call unit test
diff: @@ -157,12 +157,11 @@ CompileHelperTestStruct testCases[] = {
  return c;
  },
  // Variables are not parsed as arguments yet
  - //[] () -> UHDM::BaseClass* {
  - // UHDM::constant* c = sharedSerializer.MakeConstant();
  - // c->VpiConstType(vpiRealConst);
  - // c->VpiValue("INT:-1");
  - // return c;
  - //},
  + [] () -> UHDM::BaseClass* {
  + UHDM::ref_obj* c = sharedSerializer.MakeRef_obj();
  + c->VpiName("clk");
  + return c;
  + },
  }
  },
  {
  