fix(libcudacxx): fix test issue
适配性修改两个测试用例
std/atomics/atomics.types.generic/address ref.pass.cpp
DCC17优化问题
std/utilities/optional/optional.object/optional.object.assign/copy.pass.cpp
共享内存初始化不支持，需要手动置0
http://hpczentao.sugon.com/bug-view-114264.html