director_property testcase for C# and Java

Testing std::string as director method parameter

Examples/test-suite/csharp/director_property_runme.cs

@@ -0,0 +1,51 @@
+using System;
+
+namespace director_propertyNamespace {
+
+public class runme
+{
+  static void Main()
+  {
+    {
+      Foo a = new MyFoo();
+      if (a.getA() != "") {
+        throw new Exception( "Test failed" );
+      }
+      a.setA("Hello");
+      if (a.getA() != "Hello set from MyFoo") {
+        throw new Exception( "Test failed" );
+      }
+      a.Dispose();
+    }
+
+    {
+      Foo a_original = new MyFoo();
+      Foo a = Foo.get_self(a_original);
+      if (a.getA() != "") {
+        throw new Exception( "Test failed" );
+      }
+      a.setA("Hello");
+      if (a.getA() != "Hello set from MyFoo") {
+        throw new Exception( "Test failed" );
+      }
+      a.Dispose();
+    }
+  }
+}
+
+public class MyFoo : Foo
+{
+  public MyFoo()
+    : base()
+  {
+  }
+
+  public override void setA(string a)
+  {
+    base.setA(a + " set from MyFoo");
+  }
+}
+
+}
+
+