Shared IntelliSense should treat symbols with the same names as equivalent.

src/EditorFeatures/CSharpTest/Completion/CompletionProviders/SymbolCompletionProviderTests.cs

@@ -7080,6 +7080,68 @@ public class Methods2
             VerifyItemInLinkedFiles(markup, "Do", expectedDescription);
         }
 
+        [Fact, Trait(Traits.Feature, Traits.Features.Completion)]
+        public void SharedProjectFieldAndPropertiesTreatedAsIdentical()
+        {
+            var markup = @"<Workspace>
+    <Project Language=""C#"" CommonReferences=""true"" AssemblyName=""Proj1"" PreprocessorSymbols=""ONE"">
+        <Document FilePath=""CurrentDocument.cs""><![CDATA[
+class C
+{
+#if ONE
+    public int x;
+#endif
+#if TWO
+    public int x {get; set;}
+#endif
+    void foo()
+    {
+        x$$
+    }
+}
+]]>
+        </Document>
+    </Project>
+    <Project Language=""C#"" CommonReferences=""true"" AssemblyName=""Proj2"" PreprocessorSymbols=""TWO"">
+        <Document IsLinkFile=""true"" LinkAssemblyName=""Proj1"" LinkFilePath=""CurrentDocument.cs""/>
+    </Project>
+</Workspace>";
+
+            var expectedDescription = $"(field) int C.x";
+            VerifyItemInLinkedFiles(markup, "x", expectedDescription);
+        }
+
+        [Fact, Trait(Traits.Feature, Traits.Features.Completion)]
+        public void SharedProjectFieldAndPropertiesTreatedAsIdentical2()
+        {
+            var markup = @"<Workspace>
+    <Project Language=""C#"" CommonReferences=""true"" AssemblyName=""Proj1"" PreprocessorSymbols=""ONE"">
+        <Document FilePath=""CurrentDocument.cs""><![CDATA[
+class C
+{
+#if TWO
+    public int x;
+#endif
+#if ONE
+    public int x {get; set;}
+#endif
+    void foo()
+    {
+        x$$
+    }
+}
+]]>
+        </Document>
+    </Project>
+    <Project Language=""C#"" CommonReferences=""true"" AssemblyName=""Proj2"" PreprocessorSymbols=""TWO"">
+        <Document IsLinkFile=""true"" LinkAssemblyName=""Proj1"" LinkFilePath=""CurrentDocument.cs""/>
+    </Project>
+</Workspace>";
+
+            var expectedDescription = $"(property) int C.x";
+            VerifyItemInLinkedFiles(markup, "x", expectedDescription);
+        }
+
         [Fact, Trait(Traits.Feature, Traits.Features.Completion)]
         public void ConditionalAccessWalkUp()
         {

src/Features/Core/Shared/Utilities/LinkedFilesSymbolEquivalenceComparer.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;
 using System.Collections.Generic;
 using Microsoft.CodeAnalysis.Shared.Extensions;
 
@@ -16,7 +17,7 @@ internal sealed class LinkedFilesSymbolEquivalenceComparer : IEqualityComparer<I
 
         bool IEqualityComparer<ISymbol>.Equals(ISymbol x, ISymbol y)
         {
-            return x.Kind == y.Kind && x.Name == y.Name;
+            return x.Name == y.Name;
         }
 
         int IEqualityComparer<ISymbol>.GetHashCode(ISymbol symbol)