fix compilation errors and temporarily disable dependency on #4202

Author: Mpdreamz

src/Elasticsearch.Net/Providers/MemoryStreamFactory.cs

@@ -7,6 +7,8 @@ namespace Elasticsearch.Net
 	/// </summary>
 	public class MemoryStreamFactory : IMemoryStreamFactory
 	{
+		public static MemoryStreamFactory Default { get; } = new MemoryStreamFactory();
+
 		/// <inheritdoc />
 		public MemoryStream Create() => new MemoryStream();
 

src/Tests/Tests.Benchmarking/BulkBenchmarkTests.cs

@@ -21,12 +21,13 @@ public class BulkBenchmarkTests
 				.EnableHttpCompression(false)
 			);
 
-		private static readonly IElasticClient ClientNoRecyclableMemory =
-			new ElasticClient(new ConnectionSettings(new InMemoryConnection(Response, 200, null, null))
-				.DefaultIndex("index")
-				.EnableHttpCompression(false)
-				.MemoryStreamFactory(MemoryStreamFactory.Default)
-			);
+		//TODO can uncomment when https://github.com/elastic/elasticsearch-net/pull/4202 lands
+//		private static readonly IElasticClient ClientNoRecyclableMemory =
+//			new ElasticClient(new ConnectionSettings(new InMemoryConnection(Response, 200, null, null))
+//				.DefaultIndex("index")
+//				.EnableHttpCompression(false)
+//				.MemoryStreamFactory(MemoryStreamFactory.Default)
+//			);
 
 		private static readonly Nest7.IElasticClient ClientV7 =
 			new Nest7.ElasticClient(new Nest7.ConnectionSettings(
@@ -41,8 +42,8 @@ public void Setup() { }
 		[Benchmark(Description = "PR")]
 		public BulkResponse NestUpdatedBulk() => Client.Bulk(b => b.IndexMany(Projects));
 
-		[Benchmark(Description = "PR no recyclable")]
-		public BulkResponse NoRecyclableMemory() => ClientNoRecyclableMemory.Bulk(b => b.IndexMany(Projects));
+//		[Benchmark(Description = "PR no recyclable")]
+//		public BulkResponse NoRecyclableMemory() => ClientNoRecyclableMemory.Bulk(b => b.IndexMany(Projects));
 
 		[Benchmark(Description = "7.x")]
 		public Nest7.BulkResponse NestCurrentBulk() => ClientV7.Bulk(b => b.IndexMany(Projects));