[clang] [Clang][ASTMatcher] Improve matching isDerivedFrom base in case of multi aliases exists (PR #126793)

[Aaron Ballman via cfe-commits]

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

Just a minor rewording, feel free to land once you've made the changes.

https://github.com/llvm/llvm-project/pull/126793