src/vs/workbench/contrib/comments/common/commentModel.ts/CommentsModel/_compareURIs
class CommentsModel:	private static _compareURIs(a: CommentThread, b: CommentThread) {
		const resourceA = a.resource!.toString();
		const resourceB = b.resource!.toString();
		if (resourceA < resourceB) {
			return -1;
		} else if (resourceA > resourceB) {
			return 1;
		} else {
			return 0;
		}
	}