[clang-tools-extra] [clang-tidy] Address false positives in misc-redundant-expression checker (PR #122841)

[via cfe-commits]

earnol wrote:

> lgtm. could you test the case ＃define MACRO "bbb" "aaa" MACRO == "aaabbb"

Yeah. A good suggestions. I expect it to come as a negative as it is now.

https://github.com/llvm/llvm-project/pull/122841