Function isHostParent

code/third-party/public/app.js:10845–10847

(fiber)

  }

  function isHostParent(fiber) {
    return fiber.tag === HostComponent || fiber.tag === HostRoot || fiber.tag === HostPortal;
  }

  function getHostSibling(fiber) {
    // We're going to search forward into the tree until we find a sibling host