I've observed that when React's profiling mode is enabled, updating the profiling fields [here](https://github.com/facebook/react/blob/1d25aa5787d4e19704c049c3cfa985d3b5190e0d/packages/react-reconciler/src/ReactProfilerTimer.js#L46) and [here](https://github.com/facebook/react/blob/1d25aa5787d4e19704c049c3cfa985d3b5190e0d/packages/react-reconciler/src/ReactProfilerTimer.js#L69-L71) during the _render_ phase seems to cause a significant deopt in [`getHostSibling`](https://github.com/facebook/react/blob/1d25aa5787d4e19704c049c3cfa985d3b5190e0d/packages/react-reconciler/src/ReactFiberCommitWork.js#L858-L898) during the _commit_ phase for Chrome only. (Neither Safari nor Firefox seem to be affected by this.)

I have created a repro case with inline annotations here:
https://github.com/bvaughn/react-profiling-v8-deopt-repro#about-this-repro-case

(Note that the above repo is private. Please tag me here if you need access.)
const prototype = Component.prototype;
  return !!(prototype && prototype.isReactComponent);
}
export function isSimpleFunctionComponent(type: any) {
  return (
    typeof type === 'function' &&
    !shouldConstruct(type) &&
    type.defaultProps === undefined
  );
}
export function resolveLazyComponentTag(Component: Function): WorkTag {
  if (typeof Component === 'function') {
    return shouldConstruct(Component) ? ClassComponent : FunctionComponent;
  } else if (Component !== undefined && Component !== null) {
    const $$typeof = Component.$$typeof;
    if ($$typeof === REACT_FORWARD_REF_TYPE) {
      return ForwardRef;
    }
    if ($$typeof === REACT_MEMO_TYPE) {
      return MemoComponent;
    }
  }
  return IndeterminateComponent;
}
export function createWorkInProgress(