Icons missing from extension trees with resource uris (#152039) (#152050

)

Fixes #152036

src/vs/workbench/browser/parts/views/treeView.ts

@@ -1087,7 +1087,7 @@ class TreeRenderer extends Disposable implements ITreeRenderer<ITreeItem, FuzzyS
 	private shouldHideResourceLabelIcon(iconUrl: URI | undefined, icon: ThemeIcon | undefined): boolean {
 		// We always hide the resource label in favor of the iconUrl when it's provided.
 		// When `ThemeIcon` is provided, we hide the resource label icon in favor of it only if it's a not a file icon.
-		return !!iconUrl || !this.isFileKindThemeIcon(icon);
+		return (!!iconUrl || (!!icon && !this.isFileKindThemeIcon(icon)));
 	}
 
 	private shouldShowThemeIcon(hasResource: boolean, icon: ThemeIcon | undefined): icon is ThemeIcon {