src/vs/workbench/contrib/markers/browser/markersTreeViewer.ts/MarkerWidget/renderQuickfixActionbar
class MarkerWidget:	private renderQuickfixActionbar(marker: Marker): void {
		const viewModel = this.markersViewModel.getViewModel(marker);
		if (viewModel) {
			const quickFixAction = viewModel.quickFixAction;
			this.actionBar.push([quickFixAction], { icon: true, label: false });
			this.icon.classList.toggle('quickFix', quickFixAction.enabled);
			quickFixAction.onDidChange(({ enabled }) => {
				if (!isUndefinedOrNull(enabled)) {
					this.icon.classList.toggle('quickFix', enabled);
				}
			}, this, this.disposables);
			quickFixAction.onShowQuickFixes(() => {
				const quickFixActionViewItem = <QuickFixActionViewItem>this.actionBar.viewItems[0];
				if (quickFixActionViewItem) {
					quickFixActionViewItem.showQuickFixes();
				}
			}, this, this.disposables);
		}
	}