Dictionary exposes internal type comparer (#16151)

Fixes dotnet/corefx#26033

diff --git a/src/mscorlib/shared/System/Collections/Generic/Dictionary.cs b/src/mscorlib/shared/System/Collections/Generic/Dictionary.cs
index 541a0b2..1b89158 100644 (file)
--- a/src/mscorlib/shared/System/Collections/Generic/Dictionary.cs
+++ b/src/mscorlib/shared/System/Collections/Generic/Dictionary.cs
@@ -143,7 +143,7 @@ namespace System.Collections.Generic
         {
             get
             {
-                return _comparer;
+                return (_comparer is NonRandomizedStringEqualityComparer) ? (IEqualityComparer<TKey>)EqualityComparer<string>.Default : _comparer;
             }
         }