fix object tree setCollapsed method interface

src/vs/base/browser/ui/tree/indexTreeModel.ts

@@ -133,7 +133,7 @@ export class IndexTreeModel<T extends Exclude<any, undefined>, TFilterData = voi
 		return this.getTreeNode(location).collapsed;
 	}
 
-	setCollapsed(location: number[], collapsed?: boolean, recursive = false): boolean {
+	setCollapsed(location: number[], collapsed?: boolean, recursive?: boolean): boolean {
 		const { node, listIndex, revealed } = this.getTreeNodeWithListIndex(location);
 
 		if (typeof collapsed === 'undefined') {

src/vs/base/browser/ui/tree/objectTreeModel.ts

@@ -118,9 +118,9 @@ export class ObjectTreeModel<T extends NonNullable<any>, TFilterData extends Non
 		return this.model.isCollapsed(location);
 	}
 
-	setCollapsed(element: T, collapsed: boolean): boolean {
+	setCollapsed(element: T, collapsed?: boolean, recursive?: boolean): boolean {
 		const location = this.getElementLocation(element);
-		return this.model.setCollapsed(location, collapsed);
+		return this.model.setCollapsed(location, collapsed, recursive);
 	}
 
 	refilter(): void {