src/vs/editor/browser/services/editorWorkerService.ts/EditorWorkerService/computeWordRanges
class EditorWorkerService:	computeWordRanges(resource: URI, range: IRange): Promise<{ [word: string]: IRange[] } | null> {
		return this._workerManager.withWorker().then(client => client.computeWordRanges(resource, range));
	}