src/vs/workbench/contrib/debug/browser/variablesView.ts/VariablesDelegate/getTemplateId
class VariablesDelegate:	getTemplateId(element: IExpression | IScope): string {
		if (element instanceof ErrorScope) {
			return ScopeErrorRenderer.ID;
		}

		if (element instanceof Scope) {
			return ScopesRenderer.ID;
		}

		return VariablesRenderer.ID;
	}