constexpr: Implement DR1358: An instantiation of a constexpr function which
can't produce a constant expression is not ill-formed (so long as some
instantiation of that function can produce a constant expression).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149802 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed