[Windows] no-implicit-extra-clang-opts.swift fails

[ian-twilightcoder]

Description

With newer clangs, no-implicit-extra-clang-opts.swift fails on Windows. I'm not really sure why, as far as I can tell the language options are consistently passed.

Reproduction

Run the no-implicit-extra-clang-opts.swift test on windows-msvc.

Expected behavior

Pass

Environment

windows-msvc

Additional information

No response