Add an unreachable marker to avoid a -Wreturn-type error when building on Windows. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@294901 91177308-0d34-0410-b5e6-96231b3b80d8
Add an unreachable marker to avoid a -Wreturn-type error when building on Windows. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@294901 91177308-0d34-0410-b5e6-96231b3b80d8