c6f69d8829
c++17 should be passed to -std=... and not to -x option. Change-Id: I13e21d0ec98bcebe2ca537903e1bd399e287852a Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/198401 Reviewed-by: Clement Skau <cskau@google.com> Commit-Queue: Vyacheslav Egorov <vegorov@google.com>