[libc-commits] [libc] [libc] Support %lc in printf (PR #169983)

[via libc-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

The build failed before running any tests. Click on a failure below to see the details.

<details>
<summary>libc/test/src/stdio/printf_core/CMakeFiles/libc.test.src.stdio.printf_core.converter_test /home/gha/actions-runner/_work/llvm-project/llvm-project/build/runtimes/runtimes-bins/libc/test/src/stdio/printf_core/CMakeFiles/libc.test.src.stdio.printf_core.converter_test</summary>

```
FAILED: libc/test/src/stdio/printf_core/CMakeFiles/libc.test.src.stdio.printf_core.converter_test /home/gha/actions-runner/_work/llvm-project/llvm-project/build/runtimes/runtimes-bins/libc/test/src/stdio/printf_core/CMakeFiles/libc.test.src.stdio.printf_core.converter_test
cd /home/gha/actions-runner/_work/llvm-project/llvm-project/build/runtimes/runtimes-bins/libc/test/src/stdio/printf_core && /home/gha/actions-runner/_work/llvm-project/llvm-project/build/runtimes/runtimes-bins/libc/test/src/stdio/printf_core/libc.test.src.stdio.printf_core.converter_test.__build__
```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/169983