Add old sqlclient for tests (same as web)

Author: GrahamTheCoder

Tests/TestRunners/ConverterTestBase.cs

@@ -49,7 +49,8 @@ public ConverterTestBase(string rootNamespace = null)
 
     private static IReadOnlyCollection<PortableExecutableReference> References { get; } = DefaultReferences.With(
         typeof(System.Windows.Forms.Form).Assembly,
-        typeof(Microsoft.VisualBasic.Devices.Computer).Assembly
+        typeof(Microsoft.VisualBasic.Devices.Computer).Assembly,
+        typeof(System.Data.SqlClient.SqlConnection).Assembly
     );
 
     public async Task TestConversionCSharpToVisualBasicAsync(string csharpCode, string expectedVisualBasicCode, bool expectSurroundingMethodBlock = false, bool expectCompilationErrors = false, TextConversionOptions conversionOptions = null, bool hasLineCommentConversionIssue = false)