Function createCommentVNode

packages/runtime-core/src/vnode.ts:777–786

(
  text: string = '',
  // when used as the v-else branch, the comment node must be created as a
  // block to ensure correct updates.
  asBlock: boolean = false,
)

 * @private
 */
export function createCommentVNode(
  text: string = '',
  // when used as the v-else branch, the comment node must be created as a
  // block to ensure correct updates.
  asBlock: boolean = false,
): VNode {
  return asBlock
    ? (openBlock(), createBlock(Comment, null, text))
    : createVNode(Comment, null, text)
}

export function normalizeVNode(child: VNodeChild): VNode {
  if (child == null || typeof child === 'boolean') {