Simplify

src/EditorFeatures/Core/Implementation/KeywordHighlighting/HighlighterViewTaggerProvider.cs

@@ -98,12 +98,10 @@ protected override async Task ProduceTagsAsync(TaggerContext<KeywordHighlightTag
             }
 
             using (Logger.LogBlock(FunctionId.Tagger_Highlighter_TagProducer_ProduceTags, cancellationToken))
+            using (s_listPool.GetPooledObject(out var highlights))
             {
                 var root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
 
-                using var _ = s_listPool.GetPooledObject();
-                var highlights = _.Object;
-
                 _highlightingService.AddHighlights(root, position, highlights, cancellationToken);
 
                 foreach (var span in highlights)