cxx_status: the name C++14 isn't provisional any more.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@216836 91177308-0d34-0410-b5e6-96231b3b80d8
cxx_status: we did support some of C++14 in Clang 3.3.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@216837 91177308-0d34-0410-b5e6-96231b3b80d8