[flang-commits] [clang] [flang] [flang][driver] Avoid mentions of Clang in Flang's command line reference. (PR #88932)

[Michael Kruse via flang-commits]

Meinersbur wrote:

> IIRC it was unnecessary for the documentation because it gets built multiple times, for the driver it's built once so it has to include all possible variants the first time.
> 
> I have no preference for how it's done, if the `%Program` thing works then fine. We only need a `ForVariants` if it's something people see when interacting with Flang itself I think.

I didn't know this and experimented a bit. Indeed `%Program` in `HelpText` gets emitted as "Clang" in `flang-new --help`. `DocBrief` and `HelpText` are "Flang" for `FlangCommandLineReference.rst`.

So `DocBriefForVariant` would not add new functionality, but might be useful so `DocBrief[ForVariant]` and `HelpText[ForVariant]` can use the same syntax and avoid confusion. I will merge this patch and work on `DocBriefForVariant` after that.

https://github.com/llvm/llvm-project/pull/88932