Add type that will contain all the fix data we need for AddImport.

src/Features/Core/Portable/AddImport/AddImportFixData.cs

+// Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+
+using System.Collections.Immutable;
+using Microsoft.CodeAnalysis.CodeActions;
+using Microsoft.CodeAnalysis.SymbolSearch;
+using Microsoft.CodeAnalysis.Text;
+
+namespace Microsoft.CodeAnalysis.AddImport
+{
+    internal class AddImportFixData
+    {
+        /// <summary>
+        /// The document where we started the Add-Import operation from.  (Also the document that
+        /// will have the import added to it).  
+        /// </summary>
+        public readonly Document ContextDocument;
+
+        /// <summary>
+        /// Text changes to make to the document.  Usually just the import to add.  May also
+        /// include a change to the name node the feature was invoked on to fix the casing of it.
+        /// May be empty for fixes that don't need to add an import and only do something like
+        /// add a project/metadata reference.
+        /// </summary>
+        public readonly ImmutableArray<TextChange> TextChanges;
+
+        /// <summary>
+        /// String to display in the lightbulb menu.
+        /// </summary>
+        public readonly string Title;
+
+        /// <summary>
+        /// Tags that control what glyph is displayed in the lightbulb menu.
+        /// </summary>
+        public readonly ImmutableArray<string> Tags;
+
+        /// <summary>
+        /// The priority this item should have in the lightbulb list.
+        /// </summary>
+        public readonly CodeActionPriority Priority;
+
+        #region When adding P2P refrences.
+
+        /// <summary>
+        /// The optional id for a <see cref="Project"/> we'd like to add a reference to.
+        /// </summary>
+        public readonly ProjectId ProjectReferenceToAddOpt;
+
+        #endregion
+
+        #region When adding a metadata reference
+
+        /// <summary>
+        /// If we're adding <see cref="PortableExecutableReferenceFilePathToAddOpt"/> then this
+        /// is the id for the <see cref="Project"/> we can find that <see cref="PortableExecutableReference"/>
+        /// referenced from.
+        /// </summary>
+        public readonly ProjectId PortableExecutableReferenceProjectIdOpt;
+
+        /// <summary>
+        /// If we want to add a <see cref="PortableExecutableReference"/> metadata reference, this 
+        /// is the <see cref="PortableExecutableReference.FilePath"/> for it.
+        /// </summary>
+        public readonly string PortableExecutableReferenceFilePathToAddOpt;
+
+        #endregion
+
+        #region When adding an assembly reference
+
+        public readonly ReferenceAssemblyWithTypeResult ReferenceAssemblyOpt;
+
+        #endregion
+
+        #region When adding a package reference
+
+        public readonly string PackageSourceOpt;
+        public readonly string PackageNameOpt;
+        public readonly string PackageVersionOpt;
+
+        #endregion
+
+        private AddImportFixData(
+            Document contextDocument,
+            ImmutableArray<TextChange> textChanges,
+            string title,
+            ImmutableArray<string> tags,
+            CodeActionPriority priority)
+        {
+            ContextDocument = contextDocument;
+            TextChanges = textChanges;
+            Title = title;
+            Tags = tags;
+            Priority = priority;
+        }
+
+        public AddImportFixData(Document contextDocument, ImmutableArray<TextChange> textChanges, string title, ImmutableArray<string> tags, CodeActionPriority priority, ProjectId projectReferenceToAddOpt)
+            : this(contextDocument, textChanges, title, tags, priority)
+        {
+            ProjectReferenceToAddOpt = projectReferenceToAddOpt;
+        }
+
+        public AddImportFixData(Document contextDocument, ImmutableArray<TextChange> textChanges, string title, ImmutableArray<string> tags, CodeActionPriority priority, ProjectId portableExecutableReferenceProjectIdOpt, string portableExecutableReferenceFilePathToAddOpt)
+            : this(contextDocument, textChanges, title, tags, priority)
+        {
+            PortableExecutableReferenceProjectIdOpt = portableExecutableReferenceProjectIdOpt;
+            PortableExecutableReferenceFilePathToAddOpt = portableExecutableReferenceFilePathToAddOpt;
+        }
+
+        public AddImportFixData(Document contextDocument, ImmutableArray<TextChange> textChanges, string title, ImmutableArray<string> tags, CodeActionPriority priority, ReferenceAssemblyWithTypeResult referenceAssemblyOpt)
+            : this(contextDocument, textChanges, title, tags, priority)
+        {
+            ReferenceAssemblyOpt = referenceAssemblyOpt;
+        }
+
+        public AddImportFixData(Document contextDocument, ImmutableArray<TextChange> textChanges, string title, ImmutableArray<string> tags, CodeActionPriority priority, string packageSourceOpt, string packageNameOpt, string packageVersionOpt)
+            : this(contextDocument, textChanges, title, tags, priority)
+        {
+            PackageSourceOpt = packageSourceOpt;
+            PackageNameOpt = packageNameOpt;
+            PackageVersionOpt = packageVersionOpt;
+        }
+    }
+}
\ No newline at end of file

src/Features/Core/Portable/Features.csproj

@@ -99,6 +99,7 @@
     <Compile Include="..\..\..\Compilers\Shared\DesktopShim.cs">
       <Link>Shared\Utilities\DesktopShim.cs</Link>
     </Compile>
+    <Compile Include="AddImport\AddImportFixData.cs" />
     <Compile Include="AddImport\CodeActions\AssemblyReferenceCodeAction.cs" />
     <Compile Include="AddImport\CodeActions\MetadataSymbolReferenceCodeAction.cs" />
     <Compile Include="AddImport\CodeActions\ProjectSymbolReferenceCodeAction.cs" />