Merge pull request #36126 from sharwell/valuetask-writes

GetWriteTaskAsync often completes synchronously

src/Workspaces/Core/Portable/Storage/SQLite/SQLitePersistentStorage_WriteBatching.cs

@@ -120,7 +120,8 @@ internal partial class SQLitePersistentStorage
             return;
 
             // Local functions
-            async Task<(Task previousTask, TaskCompletionSource<int> taskCompletionSource)> GetWriteTaskAsync()
+            //[PerformanceSensitive("https://github.com/dotnet/roslyn/issues/36114", OftenCompletesSynchronously = true)]
+            async ValueTask<(Task previousTask, TaskCompletionSource<int> taskCompletionSource)> GetWriteTaskAsync()
             {
                 // Have to acquire the semaphore.  We're going to mutate the shared 'keyToWriteActions'
                 // and 'keyToWriteTask' collections.