MRU should use filter text not display text

src/EditorFeatures/Core/Implementation/IntelliSense/AsyncCompletion/CommitManager.cs

@@ -172,7 +172,7 @@ internal CommitManager(ITextView textView, RecentItemsManager recentItemsManager
                 roslynItem, completionListSpan, commitChar, triggerSnapshot, serviceRules,
                 filterText, cancellationToken);
 
-            _recentItemsManager.MakeMostRecentItem(roslynItem.DisplayText);
+            _recentItemsManager.MakeMostRecentItem(roslynItem.FilterText);
             return new AsyncCompletionData.CommitResult(isHandled: true, commitBehavior);
         }
 

src/EditorFeatures/Core/Implementation/IntelliSense/AsyncCompletion/ItemManager.cs

@@ -524,7 +524,7 @@ private static bool ShouldBeFilteredOutOfCompletionList(VSCompletionItem item, I
 
         internal static int GetRecentItemIndex(ImmutableArray<string> recentItems, RoslynCompletionItem item)
         {
-            var index = recentItems.IndexOf(item.DisplayText);
+            var index = recentItems.IndexOf(item.FilterText);
             return -index;
         }