Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/test-738-lib.cs

@@ -0,0 +1,26 @@
+// Compiler options: -t:library
+
+using System;
+
+namespace TestNamespace
+{
+	public abstract class Stream : IDisposable
+	{
+		public void Dispose ()
+		{
+			Dispose(true);
+		}
+
+		protected virtual void Dispose (bool disposing)
+		{
+		}
+	}
+
+	public class NonClosingStream 
+		: TestNamespace.Stream, IDisposable
+	{
+		void  IDisposable.Dispose()
+		{
+		}
+	}
+}