Protect std::array tests under noexceptions
Protect std::array tests under noexceptions

Skip tests that expect exceptions be thrown. Also add missing asserts.

Differential Revision: https://reviews.llvm.org/D27095



git-svn-id: 756ef344af921d95d562d9e9f9389127a89a6314@288165 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx