[clang-tools-extra] [clang-tidy] Fix insertion location for certain function pointers in `cppcoreguidelines-init-variables` (PR #162218)

[Victor Chernyakin via cfe-commits]

https://github.com/localspook approved this pull request.

LGTM apart from one suggestion

https://github.com/llvm/llvm-project/pull/162218