anchor.diff:      }
       var cmd = { "id": seqNum,
                   "command": "evaluateExpr",
  -                "params": { "isolateId": isolate_id,
  +                "params": { "isolateId": currentIsolate.id,
                               target: int.parse(args[2]),
                               "expression": expr } };
       cmdo.hide();
  
positive.code:   } else if (command == "po" && args.length == 2) {
      var cmd = { "id": seqNum,
                  "command": "getObjectProperties",
                  "params": { "isolateId" : isolate_id,
                              "objectId": int.parse(args[1]) } };
      cmdo.hide();
      sendCmd(cmd).then(showPromptAfter(handleGetObjPropsResponse));
  
negative.code:     }
      var cmd = { "id": seqNum,
                  "command": "setBreakpoint",
                  "params": { "isolateId" : currentIsolate.id,
                              "url": url,
                              "line": line }};
      cmdo.hide();
  