src/vs/editor/browser/services/editorWorkerService.ts/WorkerManager/withWorker
class WorkerManager:	public withWorker(): Promise<EditorWorkerClient> {
		this._lastWorkerUsedTime = (new Date()).getTime();
		if (!this._editorWorkerClient) {
			this._editorWorkerClient = new EditorWorkerClient(this._modelService, false, 'editorWorkerService', this.languageConfigurationService);
		}
		return Promise.resolve(this._editorWorkerClient);
	}