text:   function testcase() 
    {
      var bIsFooCalled = false;
      var foo = (function () 
      {
        bIsFooCalled = true;
      });
      var d = delete foo();
      if (d === true && bIsFooCalled === true)
        return true;
    }
    {
      var __result1 = testcase();
      var __expect1 = true;
    }
    