[clang] Fix buildbot failure. (PR #86741)

[Zahira Ammarguellat via cfe-commits]

zahiraam wrote:

> > I thought the issue was fixed with the (void) addition! If not, I will merge this PR immediately.
> 
> Sorry, I misunderstood. The `void` fix ([577e0ef](https://github.com/llvm/llvm-project/commit/577e0ef94fb0b4ba9f97a6f58a1961f7ba247d21)) fixes the build error.
> 
> Meanwhile, I am guessing that you have added lambda functions to control the behavior of `PrintedDeclCXX98Matches`. If that's the case, you should merge this PR. But then again, there is no urgency as the build has been restored.

OK. I have edited the description since this is not for fixing the build as much as fixing the call `PrintedDeclCXX98Matches`.

https://github.com/llvm/llvm-project/pull/86741