[clang-tools-extra] [clang-tidy] Add readability-constant-operand-order check (PR #167158)

[Victor Chernyakin via cfe-commits]

https://github.com/localspook commented:

I did an initial round of review, but this will probably require several more; right now this PR is in pretty rough shape. I don't say that to be discouraging, but I do want to warn about that.

https://github.com/llvm/llvm-project/pull/167158