src/vs/editor/common/model/textModel.ts/DecorationsTrees/getNodeRange
class DecorationsTrees:	public getNodeRange(host: IDecorationsTreesHost, node: IntervalNode): Range {
		const versionId = host.getVersionId();
		if (node.cachedVersionId !== versionId) {
			this._resolveNode(node, versionId);
		}
		if (node.range === null) {
			node.range = host.getRangeAt(node.cachedAbsoluteStart, node.cachedAbsoluteEnd);
		}
		return node.range;
	}