Add IInMemoryDbContextOptionsBuilderInfrastructure

This is the moral equivalent of IRelationalDbContextOptionsBuilderInfrastructure which lets extension methods access the core options builder.

Fixes #23669

src/EFCore.Cosmos/Infrastructure/CosmosDbContextOptionsBuilder.cs

@@ -21,7 +21,7 @@ namespace Microsoft.EntityFrameworkCore.Infrastructure
     ///         and it is not designed to be directly constructed in your application code.
     ///     </para>
     /// </summary>
-    public class CosmosDbContextOptionsBuilder
+    public class CosmosDbContextOptionsBuilder : ICosmosDbContextOptionsBuilderInfrastructure
     {
         private readonly DbContextOptionsBuilder _optionsBuilder;
 
@@ -36,6 +36,10 @@ public CosmosDbContextOptionsBuilder(DbContextOptionsBuilder optionsBuilder)
             _optionsBuilder = optionsBuilder;
         }
 
+        /// <inheritdoc />
+        DbContextOptionsBuilder ICosmosDbContextOptionsBuilderInfrastructure.OptionsBuilder
+            => _optionsBuilder;
+
         /// <summary>
         ///     Configures the context to use the provided <see cref="IExecutionStrategy" />.
         /// </summary>
@@ -120,7 +124,7 @@ public virtual CosmosDbContextOptionsBuilder MaxRequestsPerTcpConnection(int req
             => WithOption(e => e.WithMaxRequestsPerTcpConnection(Check.NotNull(requestLimit, nameof(requestLimit))));
 
         /// <summary>
-        /// Sets the boolean to only return the headers and status code in the Cosmos DB response for write item operation 
+        /// Sets the boolean to only return the headers and status code in the Cosmos DB response for write item operation
         /// like Create, Upsert, Patch and Replace. Setting the option to false will cause the response to have a null resource.
         /// This reduces networking and CPU load by not sending the resource back over the network and serializing it on the client.
         /// </summary>

src/EFCore.Cosmos/Infrastructure/ICosmosDbContextOptionsBuilderInfrastructure.cs

@@ -0,0 +1,18 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+namespace Microsoft.EntityFrameworkCore.Infrastructure
+{
+    /// <summary>
+    ///     Explicitly implemented by <see cref="CosmosDbContextOptionsBuilder" /> to hide
+    ///     methods that are used by database provider extension methods but not intended to be called by application
+    ///     developers.
+    /// </summary>
+    public interface ICosmosDbContextOptionsBuilderInfrastructure
+    {
+        /// <summary>
+        ///     Gets the core options builder.
+        /// </summary>
+        DbContextOptionsBuilder OptionsBuilder { get; }
+    }
+}

src/EFCore.InMemory/Infrastructure/IInMemoryDbContextOptionsBuilderInfrastructure.cs

@@ -0,0 +1,18 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+namespace Microsoft.EntityFrameworkCore.Infrastructure
+{
+    /// <summary>
+    ///     Explicitly implemented by <see cref="InMemoryDbContextOptionsBuilder" /> to hide
+    ///     methods that are used by database provider extension methods but not intended to be called by application
+    ///     developers.
+    /// </summary>
+    public interface IInMemoryDbContextOptionsBuilderInfrastructure
+    {
+        /// <summary>
+        ///     Gets the core options builder.
+        /// </summary>
+        DbContextOptionsBuilder OptionsBuilder { get; }
+    }
+}

src/EFCore.InMemory/Infrastructure/InMemoryDbContextOptionsBuilder.cs

@@ -18,7 +18,7 @@ namespace Microsoft.EntityFrameworkCore.Infrastructure
     ///         and it is not designed to be directly constructed in your application code.
     ///     </para>
     /// </summary>
-    public class InMemoryDbContextOptionsBuilder
+    public class InMemoryDbContextOptionsBuilder : IInMemoryDbContextOptionsBuilderInfrastructure
     {
         /// <summary>
         ///     Initializes a new instance of the <see cref="InMemoryDbContextOptionsBuilder" /> class.
@@ -37,6 +37,10 @@ public InMemoryDbContextOptionsBuilder(DbContextOptionsBuilder optionsBuilder)
         /// <returns> The cloned configuration. </returns>
         protected virtual DbContextOptionsBuilder OptionsBuilder { get; }
 
+        /// <inheritdoc />
+        DbContextOptionsBuilder IInMemoryDbContextOptionsBuilderInfrastructure.OptionsBuilder
+            => OptionsBuilder;
+
         /// <summary>
         ///     <para>
         ///         Enables nullability check for all properties across all entities within the in-memory database.