Function collapse

lib/stats/DefaultStatsFactoryPlugin.js:1858–1876

(children)

 * @returns {Children<T>[]} collapsed children
 */
const collapse = (children) => {
	// After collapse each child must take exactly one line
	/** @type {Children<T>[]} */
	const newChildren = [];
	for (const child of children) {
		if (child.children) {
			let filteredChildren = child.filteredChildren || 0;
			filteredChildren += getTotalItems(child.children);
			newChildren.push({
				...child,
				children: undefined,
				filteredChildren
			});
		} else {
			newChildren.push(child);
		}
	}
	return newChildren;
};

/**
 * Returns result.