Rollback [52357] as it depends on macros that aren't in release.

Rolled back revisions 52393-52394,52397,52884-52885,53127,53255 via svnmerge from 
https://svn.boost.org/svn/boost/trunk


[SVN r53277]

test/helpers/count.hpp

@@ -6,8 +6,6 @@
 #if !defined(BOOST_UNORDERED_TEST_HELPERS_COUNT_HEAD)
 #define BOOST_UNORDERED_TEST_HELPERS_COUNT_HEAD
 
-#include <iostream>
-
 namespace test {
     struct object_count {
         int instances;
@@ -38,11 +36,6 @@ namespace test {
         bool operator!=(object_count const& x) const {
             return !(*this == x);
         }
-        
-        friend std::ostream& operator<<(std::ostream& out, object_count const& c) {
-            out<<"[instances: "<<c.instances<<", constructions: "<<c.constructions<<"]";
-            return out;
-        }
     };
 
     template <class T>