[clang] [clang-format] Add an option to format integer and float literal case (PR #151590)

[Björn Schäpers via cfe-commits]

HazardyKnusperkeks wrote:

> Looking at the [CI](https://github.com/llvm/llvm-project/actions/runs/16659524063/job/47155439985?pr=151590#step:3:28856) it seems the `clang/test/Format/docs_updated.test` test failed. This may be due to incorrect formatting of your style option in `ClangFormatStyleOptions.rst` but I am not actually sure. Check it out, though.

Most likely the docs were not generated with the script, but manually, otherwise it wouldn't mismatch with version 21 vs 22.

https://github.com/llvm/llvm-project/pull/151590