[boost] [smart_ptr] marking shared_ptr_move_test known failure

smart_ptr library test shared_ptr_move_test assumes the compiler support for rvalue references. The only platform participating in HEAD testing it compiles on is gcc-4.3.0_c++0x. I'd like to mark this test known failure for all the platforms in HEAD where it fails to compile because of the lack of the compiler support for rvalue references. Any objections? Thanks, Boris