extensions/references-view/src/tree.ts/TreeInputHistory/getTreeItem
class TreeInputHistory:	getTreeItem(item: HistoryItem): vscode.TreeItem {
		const result = new vscode.TreeItem(item.word);
		result.description = item.description;
		result.command = { command: '_references-view.showHistoryItem', arguments: [item], title: vscode.l10n.t('Rerun') };
		result.collapsibleState = vscode.TreeItemCollapsibleState.None;
		result.contextValue = 'history-item';
		return result;
	}