Make nullable warnings a per file opt-in (#1842)

* Make nullable warnings a per file opt-in

* Remove unneeded compiler directives

* Remove compiler directive for User Data

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/Contracts/CloseSessionRequest.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using Microsoft.SqlTools.Hosting.Protocol.Contracts;
 
 namespace Microsoft.SqlTools.ServiceLayer.ObjectExplorer.Contracts

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/Contracts/CreateSessionRequest.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using Microsoft.SqlTools.Hosting.Protocol.Contracts;
 using Microsoft.SqlTools.ServiceLayer.Connection.Contracts;
 

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/Contracts/ExpandRequest.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using Microsoft.SqlTools.Hosting.Protocol.Contracts;
 using Microsoft.SqlTools.ServiceLayer.Connection.Contracts;
 

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/Contracts/FindNodesRequest.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System.Collections.Generic;
 using Microsoft.SqlTools.Hosting.Protocol.Contracts;
 

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/Contracts/NodeInfo.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using Microsoft.SqlTools.ServiceLayer.Metadata.Contracts;
 
 namespace Microsoft.SqlTools.ServiceLayer.ObjectExplorer.Contracts

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/Contracts/RefreshRequest.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using Microsoft.SqlTools.Hosting.Protocol.Contracts;
 
 namespace Microsoft.SqlTools.ServiceLayer.ObjectExplorer.Contracts

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/Nodes/ChildFactory.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System.Collections.Generic;
 using System.Threading;
 using Microsoft.SqlTools.ServiceLayer.ObjectExplorer.SmoModel;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/Nodes/INodeFilter.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Collections.Generic;
 //using System.Linq;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/Nodes/NodeObservableCollection.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using Microsoft.SqlTools.ServiceLayer.ObjectExplorer.SmoModel;
 using System;
 using System.Collections.Generic;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/Nodes/NodeOrFilter.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Collections.Generic;
 using System.Text;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/Nodes/NodePropertyFilter.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Collections.Generic;
 using System.Text;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/Nodes/NodeSmoProperty.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 
 namespace Microsoft.SqlTools.ServiceLayer.ObjectExplorer.Nodes
 {

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/Nodes/TreeNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/ObjectExplorerService.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/ObjectExplorerUtils.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Threading;
 using Microsoft.SqlTools.ServiceLayer.ObjectExplorer.Nodes;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/DatabaseTreeNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 
 using System;
 using System.Diagnostics;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/FolderNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using Microsoft.SqlServer.Management.Smo;
 
 namespace Microsoft.SqlTools.ServiceLayer.ObjectExplorer.SmoModel

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/NodePathGenerator.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/ServerNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Diagnostics;
 using System.Globalization;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoChildFactoryBase.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoCollectionWrapper.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Collections;
 using System.Collections.Generic;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoColumnCustomNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoDatabaseCustomNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System.Collections.Generic;
 using Microsoft.SqlTools.Utility;
 using Microsoft.SqlServer.Management.Smo;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoExtensions.cs

@@ -2,6 +2,8 @@
 // Copyright (c) Microsoft. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
+
+#nullable disable
 using Microsoft.SqlServer.Management.Smo;
 using Microsoft.SqlTools.ServiceLayer.Connection;
 

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoKeyCustomNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Collections.Generic;
 using Microsoft.SqlServer.Management.Smo;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoLoginCustomNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Collections.Generic;
 using Microsoft.SqlServer.Management.Smo;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoParamterCustomNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System.Globalization;
 using Microsoft.SqlServer.Management.Smo;
 

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoQuerier.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Collections.Generic;
 using System.Data;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoQueryContext.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Globalization;
 using Microsoft.SqlServer.Management.Smo;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoQueryModel.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 // This file was generated by a T4 Template. Do not modify directly, instead update the SmoQueryModelDefinition.xml file
 // and re-run the T4 template. This can be done in Visual Studio by right-click in and choosing "Run Custom Tool",
 // or from the command-line on any platform by running "build.cmd -Target=CodeGen" or "build.sh -Target=CodeGen".

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoQueryModel.tt

@@ -12,6 +12,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 // This file was generated by a T4 Template. Do not modify directly, instead update the SmoQueryModelDefinition.xml file
 // and re-run the T4 template. This can be done in Visual Studio by right-click in and choosing "Run Custom Tool",
 // or from the command-line on any platform by running "build.cmd -Target=CodeGen" or "build.sh -Target=CodeGen".

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoTableCustomNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using Microsoft.SqlServer.Management.Smo;
 
 namespace Microsoft.SqlTools.ServiceLayer.ObjectExplorer.SmoModel

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoTreeNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using Microsoft.SqlServer.Management.Smo;
 using Microsoft.SqlTools.ServiceLayer.ObjectExplorer.Nodes;
 

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoTreeNodes.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 // This file was generated by a T4 Template. Do not modify directly, instead update the SmoTreeNodesDefinition.xml file
 // and re-run the T4 template. This can be done in Visual Studio by right-click in and choosing "Run Custom Tool",
 // or from the command-line on any platform by running "build.cmd -Target=CodeGen" or "build.sh -Target=CodeGen".

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoTreeNodes.tt

@@ -14,6 +14,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 // This file was generated by a T4 Template. Do not modify directly, instead update the SmoTreeNodesDefinition.xml file
 // and re-run the T4 template. This can be done in Visual Studio by right-click in and choosing "Run Custom Tool",
 // or from the command-line on any platform by running "build.cmd -Target=CodeGen" or "build.sh -Target=CodeGen".

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoTriggerCustomNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Collections.Generic;
 using Microsoft.SqlServer.Management.Smo;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoUserCustomNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using System.Collections.Generic;
 using Microsoft.SqlServer.Management.Smo;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoViewCustomNode.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using Microsoft.SqlServer.Management.Smo;
 
 namespace Microsoft.SqlTools.ServiceLayer.ObjectExplorer.SmoModel

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SmoWrapper.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using Microsoft.SqlServer.Management.Common;
 using Microsoft.SqlServer.Management.Smo;
 

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SqlHistoryTableQuerier.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using Microsoft.SqlServer.Management.Smo;
 

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SystemDataTypeChildFactories.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System.Collections.Generic;
 using Microsoft.SqlServer.Management.Smo;
 using Microsoft.SqlTools.ServiceLayer.ObjectExplorer.Nodes;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SqlServerType.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 using Microsoft.SqlServer.Management.Common;
 using Microsoft.SqlServer.Management.Smo;

src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/ValidForFlag.cs

@@ -3,6 +3,8 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 //
 
+#nullable disable
+
 using System;
 
 namespace Microsoft.SqlTools.ServiceLayer.ObjectExplorer