Move all C++ tests to cpp.

cpp/virtual_inheritence.cpp

@@ -0,0 +1,48 @@
+
+#include <stdio.h>
+
+class A
+{
+public:
+	A()
+	{
+		puts( "called A::A()" );
+	}
+
+	A( int /*fake*/ )
+	{
+		puts( "called A::A( int )" );
+	}
+};
+
+class B : virtual public A
+{
+public: 
+	B()
+	: A( 6 )
+	{
+		puts( "called B::B()" );
+	}
+};
+
+class C : public B
+{
+public:
+	C()
+	{
+		puts( "called C::C()" );
+	}	
+};
+
+int main ()
+{
+	puts( "constructing C object" );
+	C o;
+
+	puts( "" );
+	puts( "constructing B object" );
+	B ob;
+
+	return 0;
+}
+