C# directors override/virtual - additional testing

Add runtime test for scenario described in swig#1323.
Expand testing to cover a mix of override/virtual method overloading.
Remove testSwigDerivedClassHasMethod() test - not fixed yet.

Author: wsfulton

Examples/test-suite/csharp/director_basic_runme.cs

@@ -49,7 +49,35 @@ void run()
         throw new Exception("non-null pointer marshalling problem");
       myNewBar.x = 10;
 
-      my.testSwigDerivedClassHasMethod();
+      // Low level implementation check
+//      my.testSwigDerivedClassHasMethod();
+
+      // These should not call the C# implementations as they are not overridden
+      int v;
+      v = MyClass.call_nonVirtual(my);
+      if (v != 100) throw new Exception("call_nonVirtual broken() " + v);
+
+      v = MyClass.call_nonOverride(my);
+      if (v != 101) throw new Exception("call_nonOverride broken() " + v);
+
+      // A mix of overridden and non-overridden
+      MyClassEnd myend = new MyClassEnd();
+      MyClass mc = myend;
+
+      v = mc.nonVirtual();
+      if (v != 202) throw new Exception("mc.nonVirtual() broken " + v);
+
+      v = MyClass.call_nonVirtual(mc);
+      if (v != 202) throw new Exception("call_nonVirtual(mc) broken " + v);
+
+      v = MyClass.call_nonVirtual(myend);
+      if (v != 202) throw new Exception("call_nonVirtual(myend) broken" + v);
+
+      v = MyClass.call_nonOverride(mc);
+      if (v != 101) throw new Exception("call_nonOverride(mc) broken" + v);
+
+      v = MyClass.call_nonOverride(myend);
+      if (v != 101) throw new Exception("call_nonOverride(myend) broken" + v);
     }
   }
 }
@@ -81,4 +109,20 @@ public override Bar pmethod(Bar b) {
   }
 }
 
+class MyClassMiddle : MyClass {
+  public override int nonVirtual() {
+    return 202;
+  }
+}
+
+class MyClassEnd : MyClassMiddle {
+  public new bool nonVirtual() {
+    throw new Exception("non-virtual overrides virtual method");
+  }
+
+  public new virtual bool nonOverride() {
+    throw new Exception("non-override overrides virtual method");
+  }
+}
+
 }

Examples/test-suite/director_basic.i

@@ -130,12 +130,24 @@ public:
     return myclass->pmethod(b);
   }
 
-  virtual void nonVirtual()
+  virtual int nonVirtual()
   {
+    return 100;
   }
 
-  virtual void nonOverride()
+  virtual int nonOverride()
   {
+    return 101;
+  }
+
+  static int call_nonVirtual(MyClass *myclass)
+  {
+    return myclass->nonVirtual();
+  }
+
+  static int call_nonOverride(MyClass *myclass)
+  {
+    return myclass->nonOverride();
   }
 
   // Collisions with generated method names