src/vs/editor/common/model/intervalTree.ts/IntervalTree/search
class IntervalTree:	public search(filterOwnerId: number, filterOutValidation: boolean, cachedVersionId: number): IntervalNode[] {
		if (this.root === SENTINEL) {
			return [];
		}
		return search(this, filterOwnerId, filterOutValidation, cachedVersionId);
	}