src/vs/base/common/observableImpl/logging.ts/ConsoleObservableLogger/handleAutorunCreated
class ConsoleObservableLogger:	handleAutorunCreated(autorun: AutorunObserver): void {
		const existingHandleChange = autorun.handleChange;
		this.changedObservablesSets.set(autorun, new Set());
		autorun.handleChange = (observable, change) => {
			this.changedObservablesSets.get(autorun)!.add(observable);
			return existingHandleChange.apply(autorun, [observable, change]);
		};
	}