Teach __libcpp_is_floating_point that __fp16 and _Float16 are
floating-point types.

rdar://problem/40377353

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@333103 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed