commit de267ad1f15763290d5e33f87371dab1322a3e16
author Eric Fiselier <eric@efcs.ca> Sat Aug 03 23:54:29 2019 +0000
committer Eric Fiselier <eric@efcs.ca> Sat Aug 03 23:54:29 2019 +0000
tree 4ef8aa5c7ec1067e63337226df3625965315f6ba
parent f8066d40c84c9b61371c9aca2f45ebe0e11bb506

Suppress -Wctad-maybe-unsupported on types w/o deduction guides.

There are a handful of standard library types that are intended
to support CTAD but don't need any explicit deduction guides to
do so.

This patch adds a dummy deduction guide to those types to suppress
-Wctad-maybe-unsupported (which gets emitted in user code).

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@367770 91177308-0d34-0410-b5e6-96231b3b80d8