[libcxx-commits] [libcxx] [libc++] Run the Lit test suite against an installed version of the library (PR #96910)

[LLVM Continuous Integration via libcxx-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-win-x-armv7l` running on `as-builder-1` while building `libcxx` at step 15 "test-libc++".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/38/builds/339

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 15 (test-libc++) failure: Test just built components: libc++ completed (failure)
FAIL: llvm-libc++-static.cfg.in :: C:\buildbot\as-builder-1\x-armv7l\build\runtimes\runtimes-armv7-unknown-linux-gnueabihf-bins\test\libcxx\double_include.gen.py\barrier.sh.cpp


```

</details>

https://github.com/llvm/llvm-project/pull/96910