Nullable: System.Runtime.InteropServices.CustomMarshalers/WindowsRuntime (#23930)

[platform/upstream/coreclr.git] / src / System.Private.CoreLib / src / System / Runtime / InteropServices / WindowsRuntime / DictionaryKeyCollection.cs

diff --git a/src/System.Private.CoreLib/src/System/Runtime/InteropServices/WindowsRuntime/DictionaryKeyCollection.cs b/src/System.Private.CoreLib/src/System/Runtime/InteropServices/WindowsRuntime/DictionaryKeyCollection.cs
index 2751209..70e046d 100644 (file)
--- a/src/System.Private.CoreLib/src/System/Runtime/InteropServices/WindowsRuntime/DictionaryKeyCollection.cs
+++ b/src/System.Private.CoreLib/src/System/Runtime/InteropServices/WindowsRuntime/DictionaryKeyCollection.cs
@@ -2,7 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
+#nullable enable
 using System.Collections;
 using System.Collections.Generic;
 using System.Diagnostics;
@@ -106,7 +106,7 @@ namespace System.Runtime.InteropServices.WindowsRuntime
             return enumeration.MoveNext();
         }
 
-        object IEnumerator.Current
+        object? IEnumerator.Current
         {
             get { return ((IEnumerator<TKey>)this).Current; }
         }