[clang] [clang] __STDC_NO_THREADS__ is no longer necessary for VS 2022 1939 and above (PR #117149)

[Aaron Ballman via cfe-commits]

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+// RUN: %clang_cc1 -E -dM -triple=arm64ec-windows-msvc -std=c89 -fms-compatibility-version=19.33 -ffreestanding < /dev/null | FileCheck -check-prefix=C89_MSVC33 %s
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AaronBallman wrote:

There are a few typos in the file name; can you rename it file to `deprecate-threads-macro-definition-msvc1939.c`?

https://github.com/llvm/llvm-project/pull/117149