code: function Rt(iid, val) {
          var aret;
          if (sandbox.analysis && sandbox.analysis._return) {
              aret = sandbox.analysis._return(iid, val);
              if (aret) {
                  val = aret.result;
              }
          }
          returnStack.pop();
          returnStack.push(val);
          return (lastComputedValue = val);
      }
docs: Return statement