src/vs/base/common/ternarySearchTree.ts/TernarySearchTree/_entries
class TernarySearchTree:	private _entries(node: TernarySearchTreeNode<K, V> | undefined): IterableIterator<[K, V]> {
		const result: [K, V][] = [];
		this._dfsEntries(node, result);
		return result[Symbol.iterator]();
	}