Function workLoopConcurrent

docs/external/js/react-dom.development.js:22271–22276

@noinline

()

  function workLoopConcurrent() {
    // Perform work until Scheduler asks us to yield
    while (workInProgress !== null && !shouldYield()) {
      workInProgress = performUnitOfWork(workInProgress);
    }
  }

  function performUnitOfWork(unitOfWork) {
    // The current, flushed, state of this fiber is the alternate. Ideally