System.Collections.NonGeneric: populate collections in debugger attribute tests

This follows the lead of ImmutableCollections tests and ensures the previously uncovered
KeyValuePairs internal class is covered. Coverage of this package slightly increases from 94.3% to 94.6%.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/System.Collections.NonGeneric/tests/ArrayList/CtorTests.cs b/src/System.Collections.NonGeneric/tests/ArrayList/CtorTests.cs
index 158a329508..e9b58934c8 100644
--- a/src/System.Collections.NonGeneric/tests/ArrayList/CtorTests.cs
+++ b/src/System.Collections.NonGeneric/tests/ArrayList/CtorTests.cs
@@ -89,7 +89,7 @@ namespace System.Collections.Tests
         public void DebuggerAttributeTests()
         {
             DebuggerAttributes.ValidateDebuggerDisplayReferences(new ArrayList());
-            DebuggerAttributes.ValidateDebuggerTypeProxyProperties(new ArrayList());
+            DebuggerAttributes.ValidateDebuggerTypeProxyProperties(new ArrayList() { "a", 1, "b", 2 });
         }
     }
 }