function createBlock(type, props, children, patchFlag, dynamicProps) {
      return setupBlock(createVNode(type, props, children, patchFlag, dynamicProps, true /* isBlock: prevent a block from tracking itself */));
  }
Create a block root vnode. Takes the same exact arguments as `createVNode`.
A block root keeps track of dynamic nodes within the block in the
`dynamicChildren` array.

@private