IEnumerable descriptor property support (#6402) (#6403)

* Update program files

* Support IEnumerable descriptor properties

* Resolved incorrect codegen for promise descriptors

Co-authored-by: Steve Gordon <sgordon@hotmail.co.uk>

Author: github-actions[bot]

src/Elastic.Clients.Elasticsearch/Common/Fluent/Promise/DescriptorPromiseBase.cs

@@ -3,7 +3,6 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
-using System.ComponentModel;
 
 namespace Elastic.Clients.Elasticsearch
 {

src/Elastic.Clients.Elasticsearch/Types/SortDescriptor.cs

@@ -87,7 +87,7 @@ public SortDescriptor<TDocument> Script(Action<ScriptSortDescriptor<TDocument>>
 
 	private SortDescriptor<TDocument> AddSort(SortBase sort) => sort == null ? this : Assign(sort, (a, v) => a.Add(v), a => a._serializationOrderTracker.Add(0));
 
-	public void Serialize(Utf8JsonWriter writer, JsonSerializerOptions options, IElasticsearchClientSettings settings)
+	void ISelfSerializable.Serialize(Utf8JsonWriter writer, JsonSerializerOptions options, IElasticsearchClientSettings settings)
 	{
 		writer.WriteStartArray();
 

src/Elastic.Clients.Elasticsearch/Types/TermsOrder.cs

@@ -85,6 +85,8 @@ public sealed class TermsOrderDescriptor : DescriptorPromiseBase<TermsOrderDescr
 	{
 		public TermsOrderDescriptor() : base(new List<TermsOrder>()) { }
 
+		internal TermsOrderDescriptor(Action<TermsOrderDescriptor> configure) : this() => configure?.Invoke(this);
+
 		public TermsOrderDescriptor CountAscending() => Assign(a => a.Add(TermsOrder.CountAscending));
 
 		public TermsOrderDescriptor CountDescending() => Assign(a => a.Add(TermsOrder.CountDescending));