[boost] Enabling fast swap optimization for Boost types VC9 SP1.

From: Michael Marcin (mike.marcin_at_[hidden])
Date: 2008-08-20 13:08:30

The VC team recently released an update to the VC9 standard library that 
allows them to take advantage of types with fast swap when performing 
operations like vector realloc. However it appears this optimization is 
guarded by a trait that must be specialized.

Could we specialize std::_Move_operation_category for this version of 
VC9 to enable this optimization for boost types that can benefit from it?

http://tinyurl.com/6h298c

Thanks,

Michael Marcin