Move all C++ tests to cpp.

cpp/temporary_objects.cpp

@@ -0,0 +1,41 @@
+#include <iostream>
+
+class a
+{
+public:
+	a()
+	{
+		std::cout << "construction" << std::endl;
+	}
+	~a()
+	{
+		std::cout << "destruction" << std::endl;
+	}
+};
+
+class guard
+{
+public:
+	a _a;
+	a* operator & () 
+	{
+		return &_a;
+	}
+};
+
+guard f()
+{
+	return guard();
+}
+
+void g ( a* p )
+{
+	std::cout << "working with a" << std::endl;
+}
+
+int main()
+{
+	g( &f() );
+	
+	return 0;
+}