✏ fix types

src/vs/base/browser/ui/list/listView.ts

@@ -65,7 +65,7 @@ export class ListView<T> implements IDisposable {
 		this.items = [];
 		this.itemId = 0;
 		this.rangeMap = new RangeMap();
-		this.renderers = toObject<IRenderer<T, any>, IRenderer<T, any>>(renderers, r => r.templateId);
+		this.renderers = toObject<IRenderer<T, any>>(renderers, r => r.templateId);
 		this.cache = new RowCache(this.renderers);
 
 		this.lastRenderTop = 0;

src/vs/base/browser/ui/list/listWidget.ts

@@ -51,7 +51,7 @@ class TraitRenderer<T, D> implements IRenderer<T, ITraitTemplateData<D>>
 		private renderer: IRenderer<T, D>
 	) { }
 
-	public get templateId(): string {
+	get templateId(): string {
 		return this.renderer.templateId;
 	}
 

src/vs/base/common/objects.ts

@@ -148,8 +148,8 @@ export function assign(destination: any, ...sources: any[]): any {
 	return destination;
 }
 
-export function toObject<T, R>(arr: T[], keyMap: (T) => string, valueMap: (T) => R = x => x): { [key: string]: R } {
-	return arr.reduce((o, d) => assign(o, { [keyMap(d)]: valueMap(d) }), Object.create(null));
+export function toObject<T>(arr: T[], keyMap: (t: T) => string): { [key: string]: T } {
+	return arr.reduce((o, d) => assign(o, { [keyMap(d)]: d }), Object.create(null));
 }
 
 export function equals(one: any, other: any): boolean {