Function childrenOf

packages/core/test/acceptance/hmr_spec.ts:2431–2441

(...nodes: Node[])

  }

  function childrenOf(...nodes: Node[]): Node[] {
    const result: Node[] = [];
    for (const node of nodes) {
      let current: Node | null = node.firstChild;
      while (current) {
        result.push(current);
        current = current.nextSibling;
      }
    }
    return result;
  }

  function verifyNodesRemainUntouched(root: HTMLElement, exceptions: Node[] = []) {
    if (!root) {