While working on the DevTools profiler, I've noticed that durations are sometimes incorrect. This seems to be vaguely related to high/low priority state updates. Need to track this down more so I'm filing an issue for myself.
actualDuration?: number,
  
  
  
  actualStartTime?: number,
  
  
  
  selfBaseDuration?: number,
  
  
  
  treeBaseDuration?: number,
  
  
  
  
  _debugID?: number,
  _debugSource?: Source | null,
  _debugOwner?: Fiber | null,
  _debugIsCurrentlyTiming?: boolean,
|};
let debugCounter;
if (__DEV__) {
  debugCounter = 1;
}
function FiberNode(