src/vs/workbench/api/browser/mainThreadLogService.ts/MainThreadLogService/constructor
class MainThreadLogService:	constructor(
		extHostContext: IExtHostContext,
		@ILogService private readonly _logService: ILogService,
		@IInstantiationService private readonly _instaService: IInstantiationService,
	) {
		const proxy = extHostContext.getProxy(ExtHostContext.ExtHostLogService);
		this._logListener = _logService.onDidChangeLogLevel(level => {
			proxy.$setLevel(level);
			this._loggers.forEach(value => value.setLevel(level));
		});
	}