Added some tests to figure out pp problem with OverloadedFunciton on Sun.

[SVN r77925]

overloaded_function/test/identity.hpp

@@ -8,7 +8,7 @@
 #ifndef IDENTITY_HPP_
 #define IDENTITY_HPP_
 
-#include <boost/function.hpp>
+/** @todo #include <boost/function.hpp> */
 //[identity_typeof
 #include <boost/typeof/std/string.hpp> // No need to register `boost::function`.
 //]

overloaded_function/test/sun_bug.cpp

@@ -1,5 +1,6 @@
 
-#include <boost/functional/overloaded_function/detail/base.hpp>
+/**@todo remove this test */
+#include <boost/functional/overloaded_function.hpp>
 
 int main() { return 0; }