[clang] [ASTMatchers] forCallable should not erase binding on success (PR #89657)

[Marco Borgeaud via cfe-commits]

marco-antognini-sonarsource wrote:

> LGTM aside from a small nit with the release notes. Do you need someone to land this on your behalf?

Thanks for asking. I should be fine -- I'll wait for the CI to complete and merge afterwards.

https://github.com/llvm/llvm-project/pull/89657